When saving again after an error, it tries to move if dn changed

If I try to save and there is an error, the second time I try to save, if the computed dn is not the same it attempt to move the object while it’s not saved yet

(from redmine: issue id 5187, created on 2016-10-11, closed on 2017-02-13)

• Relations:
  • relates #4893
• Changesets:
  • Revision ebd0da98 by Côme Chilliet on 2016-10-11T12:33:00.000Z:

Fixes #5187 Reverting dn to old one if saving fails