[ADM] Fix bug in copySubtree's new deep copy
[ADM] Fix bug in copySubtree's new deep copy

Thanks to Donna Wu for finding this bug!

modulexcite/rib,KevinChanH/rib,jsphkhan/rib,Galen-Titanium/rib,modulexcite/rib,amithnair/rib,b-cuts/rib,Safiya85/rib,KevinChanH/rib,2braincells2go/rib,VIP000/rib,ndkeren/rib,xuzhang/rib,jmptrader/rib,eaglebk/rib,maxyu/rib,taubmann/rib,DonnaWuDongxia/rib,xuzhang/rib,taubmann/rib,byjg/rib,xuqingkuang/rib,maxyu/rib,vevedh/rib,smallertomato/rib,eaglebk/rib,crazyart/rib,KevinChanH/rib,01org/rib,suoko/rib,cubemoon/rib,cubemoon/rib,jmptrader/rib,b-cuts/rib,01org/rib,01org/rib,DonnaWuDongxia/rib,crazyart/rib,ndkeren/rib,byjg/rib,jmptrader/rib,smallertomato/rib,Safiya85/rib,2braincells2go/rib,amithnair/rib,xuqingkuang/rib,b-cuts/rib,Galen-Titanium/rib,vevedh/rib,jsphkhan/rib,amithnair/rib,crazyart/rib,suoko/rib,carlst/rib,modulexcite/rib,VIP000/rib,Galen-Titanium/rib,suoko/rib,carlst/rib,2braincells2go/rib