test_double_replaced_migrations_are_checked_correctly fails intermittently under WSL.

[Stewart Matheson]

Under WSL running Ubuntu 24.04 I am seeing intermittent test failures on

migrations.test_commands.SquashMigrationsTests.test_double_replaced_migrations_are_checked_correctly

The failure message I get is

ERROR: test_double_replaced_migrations_are_checked_correctly (migrations.test_commands.SquashMigrationsTests.test_double_replaced_migrations_are_checked_correctly)
If replaced migrations are already applied and replacing migrations
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/stewart/code/open-source/python/install/3.14.3/lib/python3.14/unittest/case.py", line 58, in testPartExecutor
    yield
  File "/home/stewart/code/open-source/python/install/3.14.3/lib/python3.14/unittest/case.py", line 669, in run
    self._callTestMethod(testMethod)

  File "/home/stewart/code/open-source/python/install/3.14.3/lib/python3.14/unittest/case.py", line 615, in _callTestMethod
    result = method()
    ^^^^^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/tests/migrations/test_commands.py", line 3246, in test_double_replaced_migrations_are_checked_correctly
    call_command("migrate", "migrations", interactive=False, verbosity=0)
    ^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/core/management/__init__.py", line 195, in call_command
    return command.execute(*args, **defaults)
      ^^^^^^^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/core/management/base.py", line 466, in execute
    output = self.handle(*args, **options)
    ^^^^^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/core/management/base.py", line 113, in wrapper
    res = handle_func(*args, **kwargs)
    ^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/core/management/commands/migrate.py", line 115, in handle
    executor = MigrationExecutor(connection, self.migration_progress_callback)
    ^^^^^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/db/migrations/executor.py", line 18, in __init__
    self.loader = MigrationLoader(self.connection)
    ^^^^^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/db/migrations/loader.py", line 59, in __init__
    self.build_graph()
    ^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/db/migrations/loader.py", line 282, in build_graph
    self.load_disk()
    ^^^^^^^^^^^^^^^
  File "/home/stewart/code/open-source/django/source/django/db/migrations/loader.py", line 87, in load_disk
    module = import_module(module_name)
    ^^^^^^^
  File "/home/stewart/code/open-source/python/install/3.14.3/lib/python3.14/importlib/__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
      ^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1398, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1371, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1335, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'tmpx72x4ve0.migrations'

This failure is intermittent however I'm able to trigger it around 90% of the time I run the test.

Steps to reproduce

1. Create New Ubuntu Machine under WSL
2. Install python 3.14.3.
3. Follow the guide here ​https://docs.djangoproject.com/en/6.0/intro/contributing/ to the point of executing tests with the runtests.py runner.
4. Observe the above failure.