Game Mechanics: Can't regen mana after casting pet

[BarackObooma]

I have a level 35 troll shaman that is extremely well twinked. I have run into this bug both times I've cast a pet. Both times were in Unrest.

When I cast a pet, I go down to zero mana (even if I was full mana) and the game acts like it does when you have no drink (even though I have plenty), I can't regen mana.

If I try to reclaim my pet, it gives me zero mana back. It's terrible because you can't gate or anything at that point.

I have tried logging out to char selection, I've tried logging completely out, I've tried rebooting my computer and recycling my modem and it's still bugged.

The only thing I've found so far that "fixed it" was to either die (either by mob or duel).