Fix for effects when objects are reused (#5121)
Fix for effects when objects are reused (#5121)

It's possible that a Lank has previousEffectNames and the thang doesn't have effectNames anymore (GD levels with dynamical components).
javatlacati/codecombat,jeremiahyan/codecombat,codecombat/codecombat,codecombat/codecombat,javatlacati/codecombat,jeremiahyan/codecombat,javatlacati/codecombat,codecombat/codecombat,jeremiahyan/codecombat,jeremiahyan/codecombat,javatlacati/codecombat,javatlacati/codecombat,codecombat/codecombat,codecombat/codecombat