Model.save_base() is called directly when loading fixtures and assumes
existing rows will be updated. Branching of "raw" allows to maintain
the optimization introduced in #29260 while supporting this edge case.
Regression in 85458e94e3.
Thanks Reupen Shah for the report.
This allows adding foreign key constraints inline and changing data in
the same migration on PostgreSQL 10+.
Regression in 738faf9da2.
Thanks Janne Rönkkö for the report and Simon Charette for the
implementation idea and review.
Clearing the SELECT clause in Query.has_results was orphaning GROUP BY
references to it.
Thanks Thierry Bastian for the report and Baptiste Mispelon for the
bisect.
Regression in fb3f034f1c.