Improve autosave jerk

[DeadMG]

TL;DR

Stop the player doing the wrong thing during autosave

What?

When the player is placing a blueprint and the autosave dialog pops up, the blueprint inevitably ends in the wrong place. I'm not sure how processing events during the autosave is working, maybe mouse moves are ignored but then the click goes through, but in any case, please improve this. Placing a blueprint isn't the only thing that can go wrong; the player can trash the wrong items, set the wrong recipes, and more.

Why?

It's just kinda annoying to have to fix these problems up when the autosave occurs. The game would flow smoother if it just wasn't a thing the player had to deal with.