Make custom tags thread-safe.
Make custom tags thread-safe.

jsibbold/timber,lockerfish/timber,vipulshah2010/timber,hejunbinlan/timber,MichaelEvans/timber,jianlei/timber,ab271994/timber,maxme/timber,MaTriXy/timber,MaTriXy/timber,lockerfish/timber,leixinstar/timber,jianlei/timber,donnfelker/timber,zhuxiaohao/timber,msdgwzhy6/timber,leixinstar/timber,donnfelker/timber,hejunbinlan/timber,robertschmid/timber,maxme/timber,robertschmid/timber,angcyo/timber,leixinstar/timber,MaTriXy/timber,ab271994/timber,zhuxiaohao/timber,jsibbold/timber,angcyo/timber,JakeWharton/timber,MichaelEvans/timber,vipulshah2010/timber,msdgwzhy6/timber,JakeWharton/timber