After pressing "G" (throwing) (ice axe) character starts infinite (?) throwing animation loop. When canceling player seems to enter unconscious state even though the screen does not black out and you can still use your inventory or eat and drink. Its not possible to get up. I tried straightforward WASD and the F-Keys. No luck. Since all the servers are full I could not relog to see if the issue still persists. Will provide more info tomorrow.
Friend had the very same issue. Incidentally he also had an ice axe in his hands.