I just discovered a new workaround for this last night…
Pull out some bindings you use for dragging thralls, and keep it in your hand while building. After the 1st punch, you will stay in the stance for as long as you’re still holding the bindings.
Without the bindings, or anything else in your left hand, you’ll return back to the normal stance after a few seconds and trying to rotate will make you punch again.
This bug totally ruined the game for me since it was introduced in December. It came with the archery update. I’ve been using a torch to do this workaround, but it constantly dying and needing more fiber/coal was getting annoying too. Discovering that bindings work too was a huge relief.