Progress bar reset creating multiple vdi at the same time

[sirio81]

I create one vdi of 10G at the same time on 4 different nodes.

dog vdi create -P test$RANDOM 10G
 20.0 % [================================>

                             ] 2.0 GB / 10 GB

dog vdi list
  Name Id Size Used Shared Creation time VDI id
Copies Tag Block Size Shift
  test32396 0 10 GB 10 GB 0.0 MB 2014-12-19 18:49 2ae462
  2 22
  test29056 0 10 GB 10 GB 0.0 MB 2014-12-19 18:49 6e5247
  2 22
  test14975 0 10 GB 10 GB 0.0 MB 2014-12-19 18:49 758cbb
  2 22
  test4407 0 10 GB 10 GB 0.0 MB 2014-12-19 18:49 c83278
 2 22

It seem to work fine.
There are no errors in sheep.log.
As you may notice, the progress bar is showing 20%.
I can tell you also that the progress bar restart from zero 3-4 times
during vdi creation but alway ends with 20%.

Sheepdog daemon version 0.9.0_30_g75f9c8d