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fix(serializer): unwrap the collection key type, not the collection type - #8780
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soyuka merged 2 commits intoNov 3, 2026
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When the key type of an object collection was a wrapping type (e.g. a nullable int), denormalizeObjectCollection() unwrapped the collection type instead of the key type, getting the same generic type back forever and hanging the request in an infinite loop.
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In
denormalizeObjectCollection(), the loop unwrapping the collection key type called$type->getWrappedType()instead of$collectionKeyType->getWrappedType(): with a wrapping key type (e.g. a nullableint), it never ended.Test:
AbstractItemNormalizerTest::testDenormalizeBadWrappedKeyType.