fix(persistence): deep-copy snapshot in load_next to keep history immutable #3077
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DouweM
requested changes
Oct 3, 2025
| if snapshot := next((s for s in self.history if isinstance(s, NodeSnapshot) and s.status == 'created'), None): | ||
| snapshot.status = 'pending' | ||
| return snapshot | ||
| return copy.deepcopy(snapshot) |
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Let's do this in SimpleStatePersistence above as well
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Problem
#1684 (comment)
Solution
deep-copy snapshot in load_next to keep history immutable