Editor GUI control stealing keyboard input

So I'm sure everyone knows of the bug - when you go into the world editor, you can use the F2-7 keys to switch between different editor modes. However, if you go into the Creator or Inspector and play with the expandable tree view controls there, you can no longer do so! You have to go into the drop-down menu to restore F key functions.

I assume it's a problem with the GuiTreeViewCtrl receiving the key events and eating them instead of passing them to any ActionMap you might have active - is anyone aware of a fix for this problem? It's strange that things like movement keys still work, but F keys don't.