#20257: QuerySet that prefetches related object with a ManyToMany field cannot
be
pickled.
-------------------------------------+-------------------------------------
Reporter: bryced | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.5
(models, ORM) | Resolution:
Severity: Release blocker | Triage Stage: Accepted
Keywords: ORM, pickle, cache | Needs documentation: 0
Has patch: 0 | Patch needs improvement: 0
Needs tests: 0 | UI/UX: 0
Easy pickings: 0 |
-------------------------------------+-------------------------------------
Changes (by bmispelon):
* cc: bmispelon@… (added)
* needs_better_patch: => 0
* component: Core (Cache system) => Database layer (models, ORM)
* needs_tests: => 0
* needs_docs: => 0
* stage: Unreviewed => Accepted
Comment:
Hi,
Thanks for the detailed report.
I can reproduce the issue in the `stable/1.5.x` branch but it appears to
have been fixed in `master`.
The testcase works on the `stable/1.4.x` branch so it is a regression.
Using `git bisect`, I found that the problem was introduced by commit
056ace0f395a58eeac03da9f9ee7e3872e1e407b.
--
Ticket URL: <https://code.djangoproject.com/ticket/20257#comment:1>
Django <https://code.djangoproject.com/>
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