fix live playback never starting in case live playlist slides before first fragment parsing
fix live playback never starting in case live playlist slides before first fragment parsing

JulianPena/flashls,fixedmachine/flashls,vidible/vdb-flashls,neilrackett/flashls,thdtjsdn/flashls,NicolasSiver/flashls,mangui/flashls,hola/flashls,tedconf/flashls,loungelogic/flashls,thdtjsdn/flashls,mangui/flashls,jlacivita/flashls,jlacivita/flashls,loungelogic/flashls,tedconf/flashls,codex-corp/flashls,codex-corp/flashls,Corey600/flashls,dighan/flashls,vidible/vdb-flashls,clappr/flashls,fixedmachine/flashls,JulianPena/flashls,clappr/flashls,hola/flashls,neilrackett/flashls,dighan/flashls,NicolasSiver/flashls,Corey600/flashls