It's really awesome to hear this is being fixed! This bug has been around for so long that I was beginning to worry it was a "feature".

Quote Originally Posted by Malthar View Post
This is a bug? I thought that's how it worked. The master gains hate by sic'ing the pet on the mob, so when the pet dies / despawns, the next hate target is the master.
It was happening even in group activities, particularly things that involved super-tanking.