
If username-based login flow is followed, we need a default avatar for the userWidget. Hence, check if the user passed to userWidget is (null) which implies a username-based login flow. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/922
If username-based login flow is followed, we need a default avatar for the userWidget. Hence, check if the user passed to userWidget is (null) which implies a username-based login flow. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/922