MDLAsset loads texture in usdz file loaded with wrong colorspace

I have a very basic usdz file from this repo

I call loadTextures() after loading the usdz via MDLAsset. Inspecting the MDLTexture object I can tell it is assigning a colorspace of linear rgb instead of srgb although the image file in the usdz is srgb.

This causes the textures to ultimately render as over saturated.

In the code I later convert the MDLTexture to MTLTexture via MTKTextureLoader but if I set the srgb option it seems to ignore it.

This significantly impacts the usefulness of Model I/O if it can't load a simple usdz texture correctly. Am I missing something?

Thanks!