Triaged
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https://code.djangoproject.com/ticket/28460 - CharField primary keys with underscores are reversed incorrectly in admin links (duplicate)
https://code.djangoproject.com/ticket/28461 - Clarify how UserManager.create_superuser() must be implemented with a ForeignKey in REQUIRED_FIELDS (accepted)
https://code.djangoproject.com/ticket/28467 - Missing real MultiValueField - MultiValueField is actually a MultiField (needsinfo)
Authored
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https://github.com/django/django/pull/8834 - Refs #5046 -- Tested the 'unicode hint' in the technical 500 debug view.
https://github.com/django/django/pull/8839 - Refs #7697 -- Tested escaping of safe strings in the technical 500 debug view.
Reviewed/committed
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https://github.com/django/django/pull/8831 - Fixed #27985 -- Fixed query for __exact=value when get_prep_value() converts value to None.