`test_class.TestInlineValues.test_detach_materialized_dict_no_memory` leaks references

[mpage]

Bug report

Bug description:

Refleaks tests are failing on main due to a leak from test_class.TestInlineValues.test_detach_materialized_dict_no_memory:

> ./python -m test -R 3:3 test_class --match test.test_class.TestInlineValues.test_detach_materialized_dict_no_memory
Using random seed: 1105673167
0:00:00 load avg: 1.71 Run 1 test sequentially in a single process
0:00:00 load avg: 1.71 [1/1] test_class
beginning 6 repetitions. Showing number of leaks (. for 0 or less, X for 10 or more)
123:456
XX1 111
test_class leaked [1, 1, 1] references, sum=3
test_class leaked [1, 1, 1] memory blocks, sum=3
test_class failed (reference leak)

== Tests result: FAILURE ==

1 test failed:
    test_class

Total duration: 223 ms
Total tests: run=1 (filtered)
Total test files: run=1/1 (filtered) failed=1
Result: FAILURE
>

That test was added in gh-124627.
cc @markshannon @DinoV

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-124722: Fix leak in test_detach_materialized_dict_no_memory #124769
• [3.13] gh-124722: Fix leak in test_detach_materialized_dict_no_memory (GH-124769) #124777

[ZeroIntensity]

I'll look into this soon. At a glance, the leak itself is probably not related to the PR.

[sobolevn]

@ZeroIntensity sorry, I didn't write a message here. I was also working on this issue.
Please, take a look at my PR: #124769

[ZeroIntensity]

Oh, perfect! I'll take a look at the PR.