[0.17.69] Transport belt madness Scenario

[fuzzywuff]

issue: Belt and Underground belt Count reset

Explanation: During any Levels of the "Transport belt Madness", the placed belt and underground belt count is reset after going "back to building" when testing your layout.
For example, you are being given 100 belts, and 50 underground belts. If you place all of them, then press the "Start Level" button to test your set-up.
When you press "back to building", the initial amount of belt and underground belt is reset to it's initial value.

So you end up with 100 belts and 50 underground belts placed on the map, AND 100 belts and 50 underground belts back in the inventory (task bars at the middle bottom of the screen)

Placing them and redoing the same process effectively giving you an infinite amount of belts.

I am not sure if it's intended or not.

[boskid]

Duplicate/Not a bug 75443