Added tests for hiding diffs (and especially the last visible diff)
Added tests for hiding diffs (and especially the last visible diff)

peppy/osu,smoogipoo/osu,ppy/osu,ppy/osu,UselessToucan/osu,DrabWeb/osu,NeoAdonis/osu,naoey/osu,ppy/osu,johnneijzen/osu,naoey/osu,ZLima12/osu,naoey/osu,peppy/osu,EVAST9919/osu,ZLima12/osu,NeoAdonis/osu,peppy/osu-new,Nabile-Rahmani/osu,smoogipooo/osu,DrabWeb/osu,peppy/osu,UselessToucan/osu,smoogipoo/osu,Frontear/osuKyzer,johnneijzen/osu,NeoAdonis/osu,DrabWeb/osu,2yangk23/osu,2yangk23/osu,smoogipoo/osu,EVAST9919/osu,UselessToucan/osu