[F] Keywords tag (keyw) deleted in m4a files

Yup.

See here:
/t/10637/1

I've been reporting this issue for a year now, and nothing... :frowning:
Another example is the "rate" atom which I have lost in many of my files due to this mp3tag bug, and which I've been begging florian for a way to allow re-entry.

It seems like for mp4/m4a, any non-Apple atom (so not "----"), if not "recognized" by mp3tag will automatically get deleted by mp3tag ;(

Florian, can we PLEASE get the 'keyw' and 'rate' tags added to mp3tag? Just as importantly, can you please make it so that for mp4/m4a files 'unrecognized' tags are not deleted on a "save" activity?