fix False positive [missing-attribute] for dict.setdefault(key, []).append(val) on unannotated dict #2799#2800
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asukaminato0721 wants to merge 1 commit intofacebook:mainfrom
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fix False positive [missing-attribute] for dict.setdefault(key, []).append(val) on unannotated dict #2799#2800asukaminato0721 wants to merge 1 commit intofacebook:mainfrom
asukaminato0721 wants to merge 1 commit intofacebook:mainfrom
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Summary
Fixes #2799
isolating failed overload attempts so they can’t mutate solver state and leak None into later matches.
Test Plan
add test