fix(regex): preserve strict folds in negative classes - #1075

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fglock wants to merge 2 commits into

fix/phase36-joni-aa-safe-siblingsfrom

fix/phase36-joni-aa-negative-safe-siblings

Commits on Aug 18, 2026

test(regex): isolate ASCII-strict negative sibling folds

fglock
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fix(regex): retain safe strict folds in negative classes

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