Update changelog/6962.bugfix.rst

Co-authored-by: Ran Benita <[email protected]>
pytest-dev · Jul 17, 2024 · a8229c2 · a8229c2
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-Fixed bug where parametrized fixtures were not being cached correctly, being recreated every time.
+Parametrization parameters are now compared using `==` instead of `is` (`is` is still used as a fallback if the parameter does not support `==`).
+This fixes use of parameters such as lists, which have a different `id` but compare equal, causing fixtures to be re-computed instead of being cached.