1.8.0 scripts and undo problem

[Kilinich]

1.8.0
After undo in the middle of simulation values of sim.time and sim.tick became 0 for a while (1-2 frames).
If I set some script for background color depended on sim.time for example it works not right way...

How to reproduce:

1) Run sim for a while and stop it
2) Type in console "App.Background.skyColor = {sim.time == 0 ? {Print("Zero sim.time!")}:{}; [1,1,1,.6]}"
3) Run sim, draw box, press undo
4) Look in console...

Zero sim.time!
Zero sim.time!


It's really mess with my scripts

[kilebantick]

Nice find, i've got a question. How do you find so many bugs? Are you specifically looking for them, or do you come across them when you are making things??

[Kilinich]

Almost all of them was found during scene building.

[emilk]

When undoing the scene and simulation is first cleared before being set to the undo-state. I'm not gonna rewrite that behavior right now.