gvim window activated by mutt doesn't get focus in xfwm4

[Paulo Marcel Coelho Aragao <marcelpaulo+l@gmail.com>]

Hi,

I've recently switched from KDE to Xfce and noticed an annoying xfwm4 
behavior. I use mutt with gvim, setting

editor="gvim --remote-wait"

so that I have a single instance of gvim running. With KDE, when I edited a 
mail in mutt, a new buffer was created in gvim, its window was raised and got 
focus. With xfwm4, the window is raised but doesn't gain focus. I tried it 
with fluxbox, and it behaves like KDE: the gvim window is raised and gets 
focus.

I found these hidden xfwm4 options:

focus_hint=true
prevent_focus_stealing=false

which seemed to be related to this, but they had no effect.

Would anybody know if this can be configured or will it be really a xfwm4 
shortcoming/bug ?

Thanks
Paulo