Delete Selected Does Not properly delete from the field it was attached.

Hello,

Thanks for this module.

I'm only testing it at the moment but I've experienced that it doesn't properly delete my files.

I've added an unlimited media browser field to content type Article.
I've added 3 images to an article.
I've deleted these images from files > (thumbnails plus view mode) > Delete Selected

When I go back to my newly created content I see that the field seems broken. I guess it's not properly deleted.

I think it should give me a warning: This file is used in X do you want to continue and properly delete it.

I just test without media browser plus and it does the same, I guess it's more media module related.

Sorry.