--- gnome-settings-daemon-40.0.1/plugins/print-notifications/gsd-print-notifications-manager.c

+++ gnome-settings-daemon-40.0.1/plugins/print-notifications/gsd-print-notifications-manager.c

@@ -1268,6 +1268,7 @@ scp_handler (GsdPrintNotificationsManage

                 kill (manager->scp_handler_pid, SIGHUP);

                 g_spawn_close_pid (manager->scp_handler_pid);

                 manager->scp_handler_spawned = FALSE;

+                manager->scp_handler_pid = -1;

         }

 }

@@ -1636,8 +1636,10 @@ gsd_print_notifications_manager_stop (Gs

                 manager->check_source_id = 0;

         }

-        if (manager->subscription_id >= 0)

+        if (manager->subscription_id >= 0) {

                 cancel_subscription (manager->subscription_id);

+                manager->subscription_id = -1;

+        }

         g_clear_pointer (&manager->printing_printers, g_hash_table_destroy);

@@ -1649,6 +1651,7 @@ gsd_print_notifications_manager_stop (Gs

                         g_source_remove (data->timeout_id);

         }

         g_list_free_full (manager->timeouts, free_timeout_data);

+        manager->timeouts = NULL;

         for (tmp = manager->active_notifications; tmp; tmp = g_list_next (tmp)) {

                 reason_data = (ReasonData *) tmp->data;

@@ -1665,12 +1668,14 @@ gsd_print_notifications_manager_stop (Gs

                 }

         }

         g_list_free_full (manager->active_notifications, free_reason_data);

+        manager->active_notifications = NULL;

         for (tmp = manager->held_jobs; tmp; tmp = g_list_next (tmp)) {

                 job = (HeldJob *) tmp->data;

                 g_source_remove (job->timeout_id);

         }

         g_list_free_full (manager->held_jobs, free_held_job);

+        manager->held_jobs = NULL;

         scp_handler (manager, FALSE);

 }