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GH-26658 introduced a regression in copy / pickle protocol for combined `enum.Flag`s. `copy.copy(re.A | re.I)` would fail with `AttributeError: ASCII|IGNORECASE`. `enum.Flag` now has a `__reduce_ex__()` method that reduces flags by combined value, not by combined name. (cherry picked from commit 05b32c1) Co-authored-by: Christian Heimes <christian@python.org> Co-authored-by: Christian Heimes <christian@python.org>
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Misc/NEWS.d/next/Library/2022-06-15-21-20-02.gh-issue-93820.FAMLY8.rst
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Fixed a regression when :func:`copy.copy`-ing :class:`enum.Flag` with | ||
multiple flag members. |