[bfss] Fix update of BFSS attribute to None (close #1875289)
The current code assume attr value is alway a valide Binary value. But when the
attr is optional, the value might be None. The change handle this case.
# 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()