if workers are ordered to build a building but the last main gets destroyed, a game over message is displayed

[andy5995]

Situation.. I order some workers to build a building, but in the meantime, my last main is destroyed. I then have 0 gold until my workers build the main I told them to build.

In the meantime, the game registers that it's completed, even though my workers are still building a main, and it gets completed.