id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 2894 [patch] XML Deserializer does not handle None values in Foreign Keys andrew@… Adrian Holovaty "Although the XML Serializer handle_fk_field method goes out of its way to create a 'None' element if the foreign key relation is None, the Deserializer fails to handle the case. Example: In a Model with a self-referential Foreign key which is allowed to be blank (and null), you may have entries with a blank value. This gets mapped to the 'None' element over the wire and results in an exception when the system attempts to find the related key with primary key '', since the None element contains no text." defect closed Core (Other) normal fixed Unreviewed 1 0 0 0 0 0