Setting -nofs causes nwg-drawer to crash when clicking category buttons

[candlebrae]

On Arch Linux, nwg-drawer version 0.1.7 installed through the AUR. Using Sway WM.

When bound to the $menu variable in Sway's config with set $menu nwg-drawer -ovl -nofs, launching via a Sway keybind and left-clicking any category button causes nwg-drawer to crash immediately. Removing the -nofs argument allowed categories to work without issue, leading me to think the issue is related to this argument.

[nwg-piotr]

Thank you for reporting. I forgot to add one more nil check. Fix on the way.