Blender loader doesn't support arrays as "user data"

When loading a blender model some “Custom Properties” can be set on the Object context. This properties are translated on loading to user-data. It supports numbers and strings quite well but when a property is set as a number array (supported in blender) it isn’t even imported as a user-data.

I’ve been looking the source-code and all looks fine and “supported”. Maybe any of the loader devs can take a look to it?.