Needless warning about invalidating saves

[Zonk]

Developer mode is very useful.
Having a warning/extra click when loading savefiles is good, but there is one case where it should NOT happen - when you load a save that is already not valid, perhaps because you used developer mode with it already. 'Fixing' this would mean one click less

[stinkstink]

Seconding this. I'm always worried I'll accidentally invalidate a savefile I don't want to because I'm so used to clicking through the warning.

[darkgod]

done