#28987: Migration changing ManyToManyField target to 'self' doesn't work
correctly
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Reporter: MSleepyPanda | Owner: Bhuvnesh
Type: Bug | Status: assigned
Component: Migrations | Version: 2.0
Severity: Normal | Resolution:
Keywords: ManyToManyField | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Bhuvnesh):
While altering a many to many field , a new table is created (which is
later renamed) and data is copied from old table to new table and then old
table is deleted. This issue caused while making this new table
[https://github.com/django/django/blob/main/django/db/backends/sqlite3/schema.py#L496
here], we are only altering the {{{m2m_reverse_fields}}} ignoring the
{{{m2m_fields}}} that points to our model.
Hope i'm proceeding into the right direction.
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Ticket URL: <https://code.djangoproject.com/ticket/28987#comment:8>
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