Fix missing async handler invocation.
Fix missing async handler invocation.

tempbottle/copycat,kuujo/copycat,atomix/atomix,atomix/atomix,arnonmoscona/copycat,madjam/copycat,arnonmoscona/copycat,madjam/copycat,quantiply-fork/copycat,aruanruan/copycat,tempbottle/copycat,kuujo/copycat,aruanruan/copycat