fixed the final bug, reduce when a node only has one child which is the same operation
fixed the final bug, reduce when a node only has one child which is the same operation

asendecka/djangae,leekchan/djangae,nealedj/djangae,b-cannon/my_djae,martinogden/djangae,pablorecio/djangae,jscissr/djangae,stucox/djangae,potatolondon/djangae,trik/djangae,chargrizzle/djangae,asendecka/djangae,SiPiggles/djangae,kirberich/djangae,wangjun/djangae,armirusco/djangae,potatolondon/djangae,jscissr/djangae,SiPiggles/djangae,martinogden/djangae,kirberich/djangae,grzes/djangae,grzes/djangae,chargrizzle/djangae,jscissr/djangae,wangjun/djangae,leekchan/djangae,stucox/djangae,trik/djangae,pablorecio/djangae,stucox/djangae,nealedj/djangae,nealedj/djangae,kirberich/djangae,asendecka/djangae,chargrizzle/djangae,trik/djangae,martinogden/djangae,armirusco/djangae,grzes/djangae,pablorecio/djangae,wangjun/djangae,armirusco/djangae,leekchan/djangae,SiPiggles/djangae