Import management modules before emitting any signals.
Review Request #10599 — Created June 18, 2019 and submitted
Evolvernow imports management modules for any apps before any
signals are emitted. This gives apps a chance to perform any operations
needed during the syncdb/migration/evolution process, such as
registering entries in the database. Normally, the
migratecommands will do this automatically, and we're guaranteeing
that it'll happen even if evolving programmatically through the
Unit tests pass.
Tested against Review Board. Saw that our management modules were able
to connect to signals and respond to them.