core.tracklist: Test changed index() behavior
core.tracklist: Test changed index() behavior

tkem/mopidy,jcass77/mopidy,adamcik/mopidy,tkem/mopidy,SuperStarPL/mopidy,adamcik/mopidy,glogiotatidis/mopidy,bencevans/mopidy,bacontext/mopidy,pacificIT/mopidy,bacontext/mopidy,jmarsik/mopidy,kingosticks/mopidy,jcass77/mopidy,ali/mopidy,mopidy/mopidy,liamw9534/mopidy,priestd09/mopidy,swak/mopidy,quartz55/mopidy,ZenithDK/mopidy,tkem/mopidy,rawdlite/mopidy,vrs01/mopidy,swak/mopidy,diandiankan/mopidy,jodal/mopidy,quartz55/mopidy,pacificIT/mopidy,bencevans/mopidy,pacificIT/mopidy,SuperStarPL/mopidy,hkariti/mopidy,liamw9534/mopidy,bacontext/mopidy,bencevans/mopidy,ali/mopidy,priestd09/mopidy,ZenithDK/mopidy,jmarsik/mopidy,quartz55/mopidy,hkariti/mopidy,kingosticks/mopidy,ali/mopidy,mokieyue/mopidy,priestd09/mopidy,jodal/mopidy,bencevans/mopidy,kingosticks/mopidy,dbrgn/mopidy,vrs01/mopidy,SuperStarPL/mopidy,jcass77/mopidy,hkariti/mopidy,diandiankan/mopidy,abarisain/mopidy,glogiotatidis/mopidy,mopidy/mopidy,rawdlite/mopidy,SuperStarPL/mopidy,woutervanwijk/mopidy,jodal/mopidy,vrs01/mopidy,jmarsik/mopidy,diandiankan/mopidy,dbrgn/mopidy,abarisain/mopidy,mokieyue/mopidy,glogiotatidis/mopidy,bacontext/mopidy,mokieyue/mopidy,dbrgn/mopidy,quartz55/mopidy,ZenithDK/mopidy,mopidy/mopidy,hkariti/mopidy,ZenithDK/mopidy,adamcik/mopidy,woutervanwijk/mopidy,dbrgn/mopidy,tkem/mopidy,glogiotatidis/mopidy,ali/mopidy,swak/mopidy,rawdlite/mopidy,rawdlite/mopidy,mokieyue/mopidy,vrs01/mopidy,jmarsik/mopidy,pacificIT/mopidy,swak/mopidy,diandiankan/mopidy