in http://musicbrainz.org/edit/14859811

Tracks have been edited to

2. PRIDE (METAL SEX Ver. 〜1998有明〜)
3. 曇りのち晴れ (Backing Track)

But these two changes are invisible.
I tried to go back and forth between release edit tabs, the changes were always there in tracklist tab but never shown in last tab edit review.

edit : Here is another diff. example by someone else http://musicbrainz.org/edit/14857896