[Vanilla Bug] Units retaining orders after changing ownership.

[Lylaktech]

Description:

If you mind control or Hijack a unit, it sometimes retains the last order it had from the previous owner.

Steps To Reproduce:

It is hard to reproduce it constantly but:

1. send a unit on an attack order (like a demotruck).
2. Mind control or hijack it.

Expected Behaviour:

The unit should completely stop whatever it was told before changing ownership.

Actual Behaviour:

The unit retains the order and can shoot at the new owner even if he owns it.