Produce Sack movement speed penalty bug

[ZamAlex]

If you pick up with Lift command empty Produce Sack from the ground and fill it by clicking on stockpile on the ground, you will not gain any movement penalty because "weight" of the sack, but it will only works until you stay at same type of terrain. If you step at any other terrain type, movement penalty will be instantly correctly applied.

[Nightdawg]

what an interesting behaviour

I wonder what else is affected by this