Feature Request: If the file has no metadata, place the file name as if it was the metadata

[FlameSniper]

Im experiencing a bug, were if the file that tauon is playing lacks the metadata for artist and title, it will refuse to show anything in the mpris integration.
Im using Cinnamon and it's media player seems to only use metadata to give the user information.
Could Tauon detect if the file lacks the metadata and place the file name as the title metadata to prevent this issue?
I probably explained it badly, so here are pictures.

This one lacks any indication at what track is playing due to the file lacking metadata. Same behavior appears in the notifications

This is the intended behavior, the file has metadata.

[Taiko2k]

OK Ive committed a fix for this now.