Comment 4 for bug 1037787

I can see that some shortcuts are already implemented, for example Control-B for bold.

But when I immediately undo this action (with control-z), the text that was bold completely disappears. Only when I press control-z a second time, does it reappear, with no bold, which was my intention.

Control-z/undo should have a more intuitive action: have the text "loose" it's bold styles without disappearing.