Extra modifier does not work with Wine

[renatofdds]

Using space as extra modifier, e.g. Ctrl to emit Ctrl+A, does not work. Tested with Wine's notepad.exe.

Using: xcape 1.1.r13.g7fca364-1 wine 1.9.15

    spare_modifier="Hyper_R"
    xmodmap -e "keycode 65 = $spare_modifier"
    xmodmap -e "remove mod4 = $spare_modifier" # hyper_l is mod4 by default
    xmodmap -e "add Control = $spare_modifier"

    # Map space to an unused keycode (to keep it around for xcape to
    # use).
    xmodmap -e "keycode any = space"

    # Finally use xcape to cause the space bar to generate a space when tapped.
    xcape -e "$spare_modifier=space"

Note: Space is sent correctly after pressing and releasing and timeout works too.