Single sided complex collision mesh collision blocks character movement from backside

Commenting out the branch in FTriangleMeshSweepVisitor::VisitSweep is a work-around.

		if (CullsBackFaceSweepsCode != 0)
		{
			if (VectorMaskBits(IsBackFace))
			{
				// Don't cull the back face if there is a chance that we are initially overlapping.
				const VectorRegister4Float MinBounds = VectorMin(VectorMin(A, B), C);
				const VectorRegister4Float MaxBounds = VectorMax(VectorMax(A, B), C);
				FAABBVectorized TriangleAABB(MinBounds, MaxBounds);
				
//				if (!GeometryAABBTriangleSpace.Intersects(TriangleAABB))
				{
					return true;
				}
			}
		}

1. Create a project with Thirdperson template
2. Copy Engine/BasicShapes/Plane to project content folder
3. Open the copied mesh
4. Set Collision Complexity to UseComplexCollisionAsSimple
5. Place the mesh vertically in the level
6. Start PIE
7. Move forward the character from back side of the mesh

Result:

The mesh blocks character.

Expected result:
Character can through the mesh from the back. This behavior is same as UE4.

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