beatmap and line can not be null in OsuLegacyDecoder.cs
beatmap and line can not be null in OsuLegacyDecoder.cs

ppy/osu,2yangk23/osu,Frontear/osuKyzer,NeoAdonis/osu,EVAST9919/osu,peppy/osu,johnneijzen/osu,naoey/osu,smoogipoo/osu,smoogipooo/osu,ZLima12/osu,DrabWeb/osu,naoey/osu,smoogipoo/osu,EVAST9919/osu,NeoAdonis/osu,ppy/osu,Nabile-Rahmani/osu,smoogipoo/osu,Drezi126/osu,NeoAdonis/osu,naoey/osu,DrabWeb/osu,johnneijzen/osu,ZLima12/osu,DrabWeb/osu,peppy/osu-new,peppy/osu,2yangk23/osu,ppy/osu,peppy/osu,UselessToucan/osu,UselessToucan/osu,UselessToucan/osu