django__django-13568

Skip auth.E003 system check for USERNAME_FIELD with total UniqueConstraints.

Verdict: the issue points to the file or function that was changed (Tier B).

The system check should be extended to check for the presence of USERNAME_FIELD in Model._meta.constraints.

The two checks disagreed (stated fix vs. points to it); the lower reading shown: “The system check should be extended to check for the presence of USERNAME_FIELD in Model._meta.constraints.”

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