Fixing another reference counting bug with composite instances
Fixing another reference counting bug with composite instances

StanfordLegion/legion,StanfordLegion/legion,chuckatkins/legion,chuckatkins/legion,StanfordLegion/legion,chuckatkins/legion,sdalton1/legion,chuckatkins/legion,chuckatkins/legion,sdalton1/legion,chuckatkins/legion,sdalton1/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,sdalton1/legion,sdalton1/legion,chuckatkins/legion,sdalton1/legion,StanfordLegion/legion,StanfordLegion/legion