Workaround:
xfconf-query -c xfwm4 -p /general/click_to_focus -s true ; wmctrl -R WindowName ; xfconf-query -c xfwm4 -p /general/click_to_focus -s false
Workaround:
xfconf-query -c xfwm4 -p /general/ click_to_ focus -s true ; wmctrl -R WindowName ; xfconf-query -c xfwm4 -p /general/ click_to_ focus -s false