#30501: Queryset ordering and Meta.ordering are mutable on expressions with
reverse().
-------------------------------------+-------------------------------------
Reporter: felixxm | Owner: felixxm
Type: Bug | Status: assigned
Component: Database | Version: master
layer (models, ORM) |
Severity: Normal | Keywords:
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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Queryset order and `Meta.ordering` are mutable with `reverse()`.
Bug revealed by running `./runtests.py ordering.test --reverse`
(reproduced at a2c31e12da272acc76f3a3a0157fae9a7f6477ac).
It seems that test added in f218a2ff455b5f7391dd38038994f2c5f8b0eca1
wasn't correct because order mutates on queryset execution in
[https://github.com/django/django/blob/a2c31e12da272acc76f3a3a0157fae9a7f6477ac/django/db/models/sql/compiler.py#L253
SQLCompiler.get_order_by()].
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Ticket URL: <https://code.djangoproject.com/ticket/30501>
Django <https://code.djangoproject.com/>
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