cubicweb-vcsfile #2723594 Improve import transactionality [done]

current import process is very inconvenient to hook in. sugguested changes are:

  • update phases and hidden status before importing new revision.
  • proper commit every behavior.
  • greater default value for import.

This will allows operation to have a useful vision of the repository state at commit time.

done in1.12.0
load left0.000
closed by#d6590399235d [import] change commit-every default from 1 to 1000 (closes #2723594)