Fix edge case in peer close
Fix edge case in peer close

RyanTech/tchannel,bunnyblue/tchannel,Zirpon/tchannel,sasa233/tchannel,hustxiaoc/tchannel,RyanTech/tchannel,bunnyblue/tchannel,Zirpon/tchannel,i/tchannel,savaki/tchannel,benfleis/tchannel,vanloswang/tchannel,vanloswang/tchannel,chenwenbin928/tchannel,i/tchannel,bunnyblue/tchannel,chenwenbin928/tchannel,sasa233/tchannel,vanloswang/tchannel,i/tchannel,Zirpon/tchannel,hustxiaoc/tchannel,hustxiaoc/tchannel,sasa233/tchannel,benfleis/tchannel,savaki/tchannel,benfleis/tchannel,chenwenbin928/tchannel,RyanTech/tchannel,savaki/tchannel