Fix triangles intro attempting to restart track after it is disposed
Fix triangles intro attempting to restart track after it is disposed

ppy/osu,smoogipoo/osu,peppy/osu-new,peppy/osu,smoogipoo/osu,peppy/osu,ppy/osu,NeoAdonis/osu,NeoAdonis/osu,smoogipooo/osu,ppy/osu,smoogipoo/osu,NeoAdonis/osu,peppy/osu