fix backward compat
fix backward compat

juliankrispel/refluxjs,mjhlybmwq/refluxjs,sahat/refluxjs,williamle8300/refluxjs,vebin/refluxjs,Sipree/reflux-core,robert-chiniquy/refluxjs,Mayho/refluxjs,lishengzxc/refluxjs,misnet/refluxjs,uniphil/refluxjs,watonyweng/refluxjs,spoike/refluxjs,bsingr/refluxjs,goatslacker/refluxjs,taskworld/refluxjs,ericf89/reflux-core,reflux/refluxjs,H3Chief/reflux-core,StephenGrider/refluxjs,simonvizzini/refluxjs,VasylHryha/refluxjs,yetone/refluxjs,GerHobbelt/refluxjs,reflux/reflux-core,VanTanev/refluxjs,insionng/refluxjs,Sipree/refluxjs