ArchetypeChunk.GetSharedComponentIndex need &kUnmanagedSharedElementIndexMask to get valid index, which is not in line with the expected behavior

Unity Engine
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1

Unity.Entities package version: 1.3.0-pre.4
When I use ArchetypeChunk.GetSharedComponentIndex(typeHandle), I always get a error value. I checked the source code and found that for a unmanaged SharedComponent, I need ArchetypeChunk.GetSharedComponentIndex & kUnmanagedSharedElementIndexMask(0xFFFF) to get lower 16 bits which is the expected correct index. Provide a public API to get the expected value directly, or at least document it on ArchetypeChunk.GetSharedComponentIndex method.