Add locking around async beatmap (task) retrieval
Add locking around async beatmap (task) retrieval

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