Make mocker.patch.dict documentation clearer on actual behavior

Documentation

The docs for patch.dict method is:

Patch a dictionary, or dictionary like object, and restore the dictionary to its original state after the test.

The phrase "to its original state" can be misleading, because this method actually restores a copy of the original data.

I ran into strange behavior with my tests because of my assumption this method would restore the original values, not copies of them.

Let me know if I'm misunderstanding anything :) Thanks all for your hard work!

gh-117765: Improve documentation for `mocker.patch.dict` (#121755)

pythongh-117765: Improve documentation for `mocker.patch.dict` (pytho…

Triage: closing because the PR has been merged, please re-open if still needed. Thanks!