[Bug] Self mutilating behavior trapper

When selecting the trapper before his promotion animation is finished and give a move order he takes an knife to the arm.

Steps to reproduce:

  • promote a worker to trapper
  • select the trapper before the promotion animation is finished, right before he starts to jump
  • give a rightclick move order directly after selecting

Expected Results:
A trapper without a knife in the arm

Actual Results:

Versions and Mods:
Alpha 2 release 49, no mods