[Blender] Unity allows to assign Actions to all Meshes when importing a .fbx file?

I'm unable to find info about this.

Unity seems to allow to create Animation Clips with every Mesh | Action combination even if in Blender my Actions are only assigned to one Mesh.

Here's a screenshot of the source selection button list:



For example, eye and mask meshes should only have eye_floating & mask_floating but instead they get breathing aswell. In Blender eye_floating Action is only assigned to the eye Mesh.

Is there a way to prevent this? I can see how the list could get annoying being multiplicative as it is.

 

Same issue with me, I just merge all animations in one track and not use Actions.
I hope someone looks into it.