fixed setting _size to null
fixed setting _size to null

SuPenguin/famous,holmesal/famous-global-build,gdi2290/famous,trusktr/famous,SeanOceanHu/famous,dcsan/core,FamousArchives/core,ziteboard/famous,ziteboard/famous,Faiz7412/famous,Lkraljevic/famous,Famous/famous,Offirmo/famous,Faiz7412/famous,wgester/famous,chinakids/famous,Famous/core,Famous/famous,Bizboard/famous