Four digit tracknumber disables group tag functionality?

[Dieter Stockert]

(05-10-2013 14:19)bbrip Wrote:  .... and I do not see any valid reason why one would ever have an Album with more than 999 tracks....

Well, there may be no existing album with as many tracks, but it could be someday (lets me think of an audio book of Robert Musil's 'Man without Qualities' and the like). So why the restriction?