[X] remove cover does not remove the tag field COVERART

[ohrenkino]

@usamike

i do exactly like you said.

The other fields should be removed too when i saven my modification! But mp3tag let them there ! that is the problem ! i don't want them!
...

If MP3tag apparently does not delete tags then you should check which tags you let Mp3tag read, write and delete.
The proper setting would be: read and delete all, write only V1 and V2.
Esp. APE tags are a problem.
If you have these in a file, get rid of them.

If this is not the case, check the file's integrity with mp3val and/or mp3diags.