Otherwise children documents can not be processed because the parent document raises a RequiredValidationError when saved Closes #14015 (grafted from e09cd53b9c701ef8da73163e9834d1f3db5a8e37) --HG-- branch : 7.0
Closes #13319 (grafted from 4162dee47b17edb4e08cecae4d64194030cb270e) --HG-- branch : 7.0