#36173: Usage of Concat with an explicit `output_field` results in unstable
migrations changes
-------------------------------------+-------------------------------------
Reporter: erchenstein | Owner: Simon
| Charette
Type: Bug | Status: closed
Component: Migrations | Version: 5.1
Severity: Normal | Resolution: fixed
Keywords: migrations concat | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Mariusz Felisiak <felisiak.mariusz@…>):
* resolution: => fixed
* status: assigned => closed
Comment:
In [changeset:"df2c4952df6d93c575fb8a3c853dc9d4c2449f36" df2c495]:
{{{#!CommitTicketReference repository=""
revision="df2c4952df6d93c575fb8a3c853dc9d4c2449f36"
Fixed #36173 -- Stabilized identity of Concat with an explicit
output_field.
When Expression.__init__() overrides make use of *args, **kwargs
captures their argument values are respectively bound as a tuple and
dict instances. These composite values might themselves contain values
that require special identity treatments such as Concat(output_field)
as it's a Field instance.
Refs #30628 which introduced bound Field differentiation but lacked
argument captures handling.
Thanks erchenstein for the report.
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/36173#comment:5>
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