Comment 24 for bug 483912

I noticed this today, and after reading a lot around and compare track Information of the songs in the same album, I noticed that there were inconsistencies in my library, not sure yet if it can be considered as a bug, but for example:

Showing only this album, sorting by track number.
Album: Absolution
Artist: Muse
Songs: 15
The song number 15 was showing at the top of the list. (15, 1,2,3,4,5,6,7,8,9,10,1,12,13,14)

Showing all albums, sorting by album
The song 15 was showing separate from other Absolution songs.

I discovered that the track information in the son 15 didn't have the 'Year' field, and that was causing it to show in a different spot. After fixing the Year, it shows correctly sorted with the other songs.