[1.0] Turret Designs disappear when using UNDO

[AlexUtopia]

All my set up turret designs disappear whenever I press ctr-z to UNDO my last action in regular building mode. I can reproduce this on different servers and game modes on all ships. Whenever a ship has turret designs on a turret base, with actual turrets on them or not, when I later edit something unrelated on the ship and press ctr-z every turret design on every turret base block resets and vanishes. And they don't come back when I press ctrl-y for REDO, you have to set them all up again.

 

PS: I'm sorry I didn't have time to post my logs, if necessary I will do so. Also I meant to put this in the general Bugs Forum, not the Beta one, maybe if possible a moderator could move it. Thanks.