Fix BasePlaybackController with respect to test_next_track_at_end_of_playlist
Fix BasePlaybackController with respect to test_next_track_at_end_of_playlist

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