Fixed check for subscribing user to issue without category.
Fixed check for subscribing user to issue without category.

Rvanlaak/thebuggenie,azaghal/thebuggenie,SysBind/thebuggenie,thebuggenie/thebuggenie,SamMousa/thebuggenie,SysBind/thebuggenie,azaghal/thebuggenie,nrensen/thebuggenie,azaghal/thebuggenie,Rvanlaak/thebuggenie,thebuggenie/thebuggenie,LogosLabs/thebuggenie,milkyway-git/thebuggenie,thebuggenie/thebuggenie,praveenscience/thebuggenie,praveenscience/thebuggenie,deshion/thebuggenie,deshion/thebuggenie,LogosLabs/thebuggenie,azaghal/thebuggenie,LogosLabs/thebuggenie,milkyway-git/thebuggenie,praveenscience/thebuggenie,deshion/thebuggenie,SamMousa/thebuggenie,Rvanlaak/thebuggenie,praveenscience/thebuggenie,SamMousa/thebuggenie,milkyway-git/thebuggenie,SysBind/thebuggenie,deshion/thebuggenie,Rvanlaak/thebuggenie,nrensen/thebuggenie,thebuggenie/thebuggenie,SamMousa/thebuggenie,SysBind/thebuggenie,thebuggenie/thebuggenie,nrensen/thebuggenie,milkyway-git/thebuggenie,nrensen/thebuggenie,LogosLabs/thebuggenie