Evaluate adding transaction support to MoveService and BulkUpdateService

The following discussion from !30216 (merged) should be addressed:

  • @mdelaossa started a discussion: (+7 comments)

    Should we wrap this in a transaction? Or is it ok that we only move some issues and not all of them?

There are two places where transactions might be missing:

  • MoveService#execute_multiple (and maybe UpdateService?)
  • BulkUpdateService#execute (maybe this should be evaluated / implemented in another / separate issue)
Edited by Patrick Derichs