Failed assertion: phoc_desktop_view_is_visible: 'wl_list_empty (&desktop->views)' should be FALSE

Just got a crash from !224 (merged):

gru 25 09:15:16 dogwood phosh[720]: phoc-desktop:ERROR:../src/desktop.c:263:phoc_desktop_view_is_visible: 'wl_list_empty (&desktop->views)' should be FALSE

Unfortunately no backtrace (got removed by journald before I managed to take a look at it). Happened when closing the last open window in phosh (Firefox, I believe).