[F] _FILENAME field is back again!

bug-fixed
#1

Using MP3Tag v2.41, when changing all filenames/tags to "_ALL Mixed Case" it's adding a "_FILENAME" field in my FLACs.

I reported this bug with the previous version of MP3Tag and it was fixed but it seems to be back.

#2

This has already been fixed with Mp3tag v2.41a Development Build.