I by now understand that the ‘add to preserve tag’ feauture only prevents overwriting an already existing and populated tag.
But if a tag frame doesn’t exist in the track, Picard will create and populate that tag frame.
I must say I really dislike that.
I believe you can avoid that by creating scripts? But that’s not very intuitive (to me yet).
Of course you can then start by adding some obvious tags in scripts that you never want Picard to create.
But it’s close to impossible to create a comprehensive list to start with, because only after using Picard (and possibly plugins) for a long time, you will find out afterwards that many tags have been written to your files that you never knew existed, and you don’t want or care for at all.
Is this an issue that is known to bother other users too?
Is there some easy workaround for it?