Fix: Relax duplicate mutable constraint (#3946)#4202
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jamie-osec merged 11 commits intoFeb 12, 2026
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…ly types that serialize on exit (otter-sec#3946)
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) * lang: Update duplicate mutable account validation logic to include only types that serialize on exit (otter-sec#3946) * lang: Update documentation for `dup` constraint * chore: Fix PR link * lang: Update duplicate mutable account constraint to include `Migration` type * lang: Allow duplicates in remaining accounts * fix: use strict AnchorError assertion in nested duplicate test * lang: Introduce `DuplicateMutableAccountKeys` trait for composite account validation
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