#11866: non-null FK to a CharField primary key fails when key value is the empty string, giving "[model.fk_col] may not be NULL" ------------------------------------------+--------------------------------- Reporter: andrewbadr | Owner: andrewbadr Status: new | Milestone: Component: Database layer (models, ORM) | Version: 1.1 Keywords: | Stage: Unreviewed Has_patch: 0 | ------------------------------------------+--------------------------------- Model A has a CharField primary_key. Model B has a ForeignKey field to model A. If an instance of A has a row with an empty-string in the primary key column, no B instance can point to it. Attempting to create such a B instance fails with "[model.fk_col] may not be NULL". Repro'd with PG and sqlite3.
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