versions:
  lp:bzr-rebase revno 130 (0.4.4dev)
  lp:bzr-svn/0.5 revno 2612 (tag:bzr-svn-0.5.2)
  lp:subvertpy revno 2030 (subvertpy-0.6.4)

latest revisions:

== (nevans@nevans-laptop)   [Fri Feb 20]-(21:53:01) ==
~/src/mdlogix/spice/trunk $ bzr log -r-1 -n1 --show-ids | grep rev
      svn revno: 53035 (on /plugins/spice/trunk)
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:53035
== (nevans@nevans-laptop)   [Fri Feb 20]-(21:53:09) ==
~/src/mdlogix/spice/trunk $ cd ../rails_2_2/
== (nevans@nevans-laptop)   [Fri Feb 20]-(21:53:16) ==
~/src/mdlogix/spice/rails_2_2 $ bzr log -r-1 -n1 --show-ids | grep rev
      svn revno: 53310 (on /plugins/spice/branches/rails_2_2)
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/branches/rails_2_2:53310

and the full revision id histories of both trunk and the rails_2_2 branch (after multiple runs of svn-upgrade, deleting the branch and rebranching, re-running svn-upgrade):

== (nevans@nevans-laptop)   [Fri Feb 20]-(22:04:32) ==
~/src/mdlogix/spice/trunk $ bzr log --show-ids | grep revision-id
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:53035
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:49128
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:49127
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:49122
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:49027
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:47084
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:47083
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:46162
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:46160
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:46155
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:42193
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:42192
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:42158
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:42083
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:41374
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:41372
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:41370
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:41368
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:41367
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:40109
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:32583
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:32560
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:31387
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:29461
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:29278
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:28649
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:25010
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:24743
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:23212
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:23210
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:23033
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:23000
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22999
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22998
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22979
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22978
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22974
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22964
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22958
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22429
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22330
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22322
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:22275
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:21944
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:21171
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:21166
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:21165
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/trunk:21087

== (nevans@nevans-laptop)   [Fri Feb 20]-(21:54:52) ==
~/src/mdlogix/spice/rails_2_2 $ bzr log --show-ids | grep revision-id
      revision-id:svn-v4:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins/spice/branches/rails_2_2:53310
      revision-id:<email address hidden>
      revision-id:<email address hidden>
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50561
      revision-id:<email address hidden>
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50559
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50557
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50553
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50552
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50551
      revision-id:<email address hidden>
      revision-id:<email address hidden>
      revision-id:<email address hidden>
      revision-id:<email address hidden>
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50524
      revision-id:<email address hidden>
      revision-id:<email address hidden>
      revision-id:<email address hidden>
      revision-id:<email address hidden>
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50505
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50481
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Fbranches%2Frails_2_2:50480
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:49128
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:49127
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:49122
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:49027
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:47084
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:47083
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:46162
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:46160
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:46155
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:42193
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:42192
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:42158
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:42083
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:41374
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:41372
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:41370
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:41368
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:41367
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:40109
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:32583
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:32560
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:31387
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:29461
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:29278
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:28649
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:25010
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:24743
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:23212
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:23210
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:23033
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:23000
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22999
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22998
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22979
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22978
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22974
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22964
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22958
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22429
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22330
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22322
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:22275
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:21944
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:21171
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:21166
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:21165
      revision-id:svn-v3-trunk2:0487d25d-142b-0410-8fcf-b82ac621bf97:plugins%2Fspice%2Ftrunk:21087

It looks like it was only able to convert the tip revision, and gave up on the rest!