This bug is created as a clone of upstream ticket:
Currently when trying to erase the ipaDomaiResolutionOrder an internal error is raised as the code ends up calling the split() method in a None object.
Created attachment 1279703 [details]
Verification for bug "Allow erasing ipaDomainResolutionOrder attribute"
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.