Bug report

Bug description:

import.c：double lock release

_PyImport_LoadLazyImportTstate (line 3931): _PyImport_ReleaseLock called before goto error, then error path releases again → Py_FatalError("unlocking a recursive mutex not owned by current thread").

This is a sub-issue of #146102 with gist details

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

Linked PRs

• gh-150374:Fix double release of import lock in lazy import reification #150376
• [3.15] gh-150374: Fix double release of import lock in lazy import reification (GH-150376) #150378