Fix future usage in LocalBackend
Fix future usage in LocalBackend

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