Only detach filter on disposal if attached
Only detach filter on disposal if attached

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