Reordered condition to avoid calling allow_migrate() if unneeded.
Avoided unneeded calls to state.render() in migrations.
Fixed #23859 -- Fixed a migration crash when a field is renamed that is part of an index_together
Merge pull request #3563 from MarkusH/ticket23859

Fixed #23859 -- Fixed a migration crash when a field is renamed that is part of an index_together
Fixed #18714 -- Added 'fuzzy' compilemessages option