[migration] fix bug in `CWAttributeAddOp.revertprecommit_event`
The `rdefdef` attribute is set during the operation execution. In some the
operation crash before this assignment. In such case `revertprecommit` raise an
attribute error crashing the whole process and shadowing the original error.
This changeset detect and Avoid this situation.
# Run all scenarii found in windmill directory
from os.path import join, dirname
from cubicweb.devtools.cwwindmill import (CubicWebWindmillUseCase,
unittest_main)
class CubicWebWindmillUseCase(CubicWebWindmillUseCase):
#test_dir = join(dirname(__file__), "windmill/test_edit_relation.py")
pass
if __name__ == '__main__':
unittest_main()