Wrong colors for splitted meshes

[mbusy]

Thank you for this great tool! I'm opening this issue because I obtained a weird result while decomposing some obj meshes:
When specifying the --save-mtl flag, the materials associated to each mesh are switched (eg if I split base.obj into base_0.obj and base_1.obj, the material for base_0.obj will be associated to base_1.obj and vice versa). Have you ever reproduced that behavior?

My guess is that the declaration order of the textures in the original mtl file will influence that?