AUI Select2 dropdown bug in Service Desk projects

Hey, anybody else having problems with AUI Select2 elements inside custom fields? What happens is whenever I want to choose something from the dropdown, the dropdown moves to the top left of the screen. The inline form closes on its own.

My guess is that the form loses focus and and closes, thus leaving the dropdown with no anchorage.

I was looking to fix it (preventing blur events, etc.) for my plugin, but nothing works. Anyone got any ideas?