[issue40027] re.sub inconsistency beginning with 3.7

[Wayne Davison]

Wayne Davison <wayne.davison at mariadb.com> added the comment:

This is not the same thing because the match is anchored, so it is not adjacent to the prior match -- it is the same match. I think that r'\s*\Z' should behave the same way as r'\s*x' due to the anchor point. The current behavior is matching the same \Z twice.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40027>
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