crew number overflow

[Schakar]

While in build mode I removed my generator block and life suport failed. As result all my Generals died ... well, MORE then all :)

 

Looks like a overflow.

 

FIX: check

if (crew_number < 0)

  (crew_number = 0)

 

 

PS: It could be, that not my Generals died ... but the Workpower of them!

So if I had 20 Generals the game let their 25(?) workpower die which result in -5 workpower (or an overflow)