Comment 14 for bug 1387722

Looking at it I decided to make a tweak so in the progress I squashed everything into a new branch: patch, upgrade script, release notes and pgtap test:

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=commit;h=af50a59b300a2218d08e4b22cc95dfa7c806b428

user/rogan/lp1387722_record_leader_updates_squashed