LineTraceComponent Does Not Return FaceIndex

bReturnFaceIndex is not being used in ConvertQueryImpactHit when calling PrimitiveComponent LineTraceComponent.

User quote:

When calling PrimitiveComponent LineTraceComponent with FCollisionQueryParameters that enable bReturnFaceIndex it never actually return anything. If using similar lineTrace that trace against whole UWorld it does work.

1. Open the UE4.sln
2. Navigation to BodyInstance.cpp
3. CTRL+F search for ConvertQueryImpactHit

Result: Notice that the 2nd to last parameter being passed in is just set to false, which is what determines if Face Index is returned or not.

Expected: The parameter would be bReturnFaceIndex to reflect whether or not you've set the variable to true in the Query Parameters being used.

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