EvilSOB is an experienced member of the community and he usually knows what he's talking about. If he reports something it is almost certain that there really was a problem. However, I think the original bug seems to be connected to ent_clone more than to ent_create. Maybe there was an issue with fragmentation of nexus memory? I'm guessing here, but I think what EvilSOB mentioned here was not a bug but more a "feature" in the form of a rather unfitting memory managment algorithm.