If the ALBUMARTIST tag does not exist, it should be copied from ARTIST.
This can fix a problem with compilations, some CD rippers (e.g. EAC) fill in ARTIST instead of ALBUMARTIST. This means for compilations ARTIST contains "Various Artists", this is lost when FFmpegfs overwrites it with the contents of the cue sheet PERFORMER ffeld.
If the ALBUMARTIST tag does not exist, it should be copied from ARTIST.
This can fix a problem with compilations, some CD rippers (e.g. EAC) fill in ARTIST instead of ALBUMARTIST. This means for compilations ARTIST contains "Various Artists", this is lost when FFmpegfs overwrites it with the contents of the cue sheet PERFORMER ffeld.