I've been doing some tests, and the problem is partly fixed in the current
version. Keybindings no longer stop working as in the bug description, but
the focused window decorations are still incorrect in the same way as
reported.
sliderall is an unmannaged window that takes focus on EnterNotify, and
keeps the focus until any other window takes focus, or the wm gives focus
away to some other window. When fvwm detects an unmannaged window stealing
focus it does not change the decoration of the focused window, and if the
unmanaged window gives away the focus fvwm sends it back to the window
that had focus before. With SloppyFocus, as in the case of the report the
focus will not be taken by fvwm if the mouse enters the root window, but
fvwm will still show the earlier focused window as focused.
What is the desired behaviour in this case?
a) defocus the window when an unmannaged window takes focus
b) always refocus the last focused window if the mouse enters the root
window when focus is stolen by an unmanaged window?
c) something else?
/Viktor
