debug-gui: avoid locking pointer twice
On Sway, and probably other Wayland compositors based on wlroots, the window_lock_pointer() was called twice.
Avoid errors when window_lock_pointer() is invoked multiple times.
Fix #808 (closed)
On Sway, and probably other Wayland compositors based on wlroots, the window_lock_pointer() was called twice.
Avoid errors when window_lock_pointer() is invoked multiple times.
Fix #808 (closed)