Comment 3 for bug 939768

This actually doesn't seem to have anything to do with Space; the bug title should be "Can't use Ctrl as a modifier key to bring up Guake 0.4.2-7" as this same behavior is exhibited when using control with any hotkey in Guake. Again, behavior is that Guake ignores the "Control+" entirely and binds to the hotkey without the modifier.

It does seem to leave other modifiers alone: for example, Ctrl+Alt+P is interpreted as Alt+P instead. I expect this is related to the fact that Control shows up as "Primary" in other hotkey GUIs now.