Fix prepull gcd when prepull was a buff
Fix prepull gcd when prepull was a buff

Juko8/WoWAnalyzer,sMteX/WoWAnalyzer,fyruna/WoWAnalyzer,anom0ly/WoWAnalyzer,fyruna/WoWAnalyzer,anom0ly/WoWAnalyzer,FaideWW/WoWAnalyzer,sMteX/WoWAnalyzer,sMteX/WoWAnalyzer,ronaldpereira/WoWAnalyzer,ronaldpereira/WoWAnalyzer,yajinni/WoWAnalyzer,yajinni/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,Juko8/WoWAnalyzer,yajinni/WoWAnalyzer,fyruna/WoWAnalyzer,yajinni/WoWAnalyzer,anom0ly/WoWAnalyzer,FaideWW/WoWAnalyzer,ronaldpereira/WoWAnalyzer,FaideWW/WoWAnalyzer,Juko8/WoWAnalyzer,WoWAnalyzer/WoWAnalyzer,anom0ly/WoWAnalyzer