log doesn't show anything.
The only reason I noticed it was because I started botting a char that i usually only play. Whatever skill is bound to numpad 9 is cast every few secs.
Weird part is, that it will dismount me to cast the spell or attempt to cast it. Even though if I press numpad 9 myself I wont dismount, and it gets even weirder, if I open a chatbox nothing is typed, so its not really spamming 9. (confusing I know)
So for me HB is detecting what skill is on N9 and casting it through its own system like it does other spells.
Ill post a vid if need be.