Fix for duplicated issues after sprint is created from Backlog.
Fix for duplicated issues after sprint is created from Backlog.

Also calculation of Backlog details is added after sprint creation.

hurie/thebuggenie,Rvanlaak/thebuggenie,milkyway-git/thebuggenie,SamMousa/thebuggenie,gabor-udvari/thebuggenie,praveenscience/thebuggenie,LogosLabs/thebuggenie,Rvanlaak/thebuggenie,gabor-udvari/thebuggenie,SysBind/thebuggenie,deshion/thebuggenie,LogosLabs/thebuggenie,LogosLabs/thebuggenie,LogosLabs/thebuggenie,Rvanlaak/thebuggenie,hurie/thebuggenie,hurie/thebuggenie,SysBind/thebuggenie,hurie/thebuggenie,SamMousa/thebuggenie,nrensen/thebuggenie,SysBind/thebuggenie,praveenscience/thebuggenie,SamMousa/thebuggenie,JonathanRH/thebuggenie,nrensen/thebuggenie,milkyway-git/thebuggenie,milkyway-git/thebuggenie,praveenscience/thebuggenie,gabor-udvari/thebuggenie,azaghal/thebuggenie,JonathanRH/thebuggenie,deshion/thebuggenie,nrensen/thebuggenie,azaghal/thebuggenie,deshion/thebuggenie,JonathanRH/thebuggenie,praveenscience/thebuggenie,thebuggenie/thebuggenie,JonathanRH/thebuggenie,thebuggenie/thebuggenie,thebuggenie/thebuggenie,azaghal/thebuggenie,deshion/thebuggenie,azaghal/thebuggenie,gabor-udvari/thebuggenie,SamMousa/thebuggenie,thebuggenie/thebuggenie,Rvanlaak/thebuggenie,milkyway-git/thebuggenie,nrensen/thebuggenie,SysBind/thebuggenie,thebuggenie/thebuggenie