host listed multiple times if deleting several graphs

when deleting multiple graphs in one go, host is listed for each graph multiple times, according to how many graphs are being deleted.
for example, deleting 4 graphs from a host named 'a' :

Graph "a" deleted from hosts "a","a","a","a"
Graph "a2" deleted from hosts "a","a","a","a"
Graph "a3" deleted from hosts "a","a","a","a"
Graph "a4" deleted from hosts "a","a","a","a"