#27004: InconsistentMigrationHistory has false positives with squashed
migrations
-------------------------+-------------------------------------------------
Reporter: jarekwg | Owner: nobody
Type: Bug | Status: new
Component: | Version: 1.10
Migrations | Keywords: InconsistentMigrationHistory
Severity: Normal | squashed migrate
Triage Stage: | Has patch: 0
Unreviewed |
Easy pickings: 0 | UI/UX: 0
-------------------------+-------------------------------------------------
{{{
a -> b -> c
a_sq_b
}}}
Migrations `a`, `b`, `c` applied. `a_sq_b` not.
When graph is built, since `a` and `b` are applied, `a_sq_b` replaces them
and becomes `c`'s dependency. However this means that `a_sq_b` is
unapplied while `c` is. This results in an InconsistentMigrationHistory
error when you try to run migrations...
Looks like the results of #25850.
Unless I'm mistaken this seems like quite a critical error..
--
Ticket URL: <https://code.djangoproject.com/ticket/27004>
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