[Evolution] message paging

[Carl Schaefer <schaefer trilug org>]

With evolution 3.20.5-1 (on Arch), I'm able to page a message forward
and back using the <Space> and <Backspace> keys.  After upgrading to
3.22.1+8+gf95d465-1 this no longer works.

The only space bar configuration I could find was "magic-spacebar",
which I have set to False.

Is there any way to restore the previous behavior?
thanks!
Carl