fix(runtime): threads own the restore points on their turns; undo restores or refuses (#6621) - #6645

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fix/6621-thread-snapshot-ownership

Commits on Sep 27, 2026

fix(runtime): threads own the restore points on their turns; undo restores or refuses (#6621)

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claude
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6c86c21
fix(runtime): bound undo to the turn's own tool spans; keep its restore points (#6621)

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claude
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a495e1b
fix(snapshot): hash the work-tree file by a path Git for Windows can open

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claude
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ff10c26
test(runtime): build the undo fixture's legacy credentials with with_legacy_root

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claude
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0afa6c7
test(runtime): prove unbound threads keep one engine session id (#6659)

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claude
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bc102d0