I know that we have several related issues like
They are all closed or "solved".
But with the newest available 2.1.0.dev2 I can still not delete the existing tag "acoustid_id" from my *.mp3
Neither $unset nor $set works.
Can one of the developers please check the code snippets mentioned in the linked issues and see if they are just forgotten? Or do we really can't delete such existing tags?