#24241: state.clone doesn't copy Django models
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Reporter: claudep | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 1.8alpha1
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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While debugging #24225, I noticed that `StateApps.clone()`, even if it
calls `copy.deepcopy(self.all_models)`, the `all_models` structure is only
partially deecopied.
`all_models` looks like:
{{{
defaultdict(<class 'collections.OrderedDict'>, {'migrations':
OrderedDict([('tag', <class 'Tag'>)])})
}}}
Unfortunately, the `<class 'Tag'>` class is identical in the original and
the copy (and what's more important, its `_meta` content), which is a
potential cause of difficult-to-debug bugs. Hints?
--
Ticket URL: <https://code.djangoproject.com/ticket/24241>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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