[gnome-panel] applet-frame: don't try to load applet that does not exist

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 49586510ea040e18aeb147acd56740346a9c3c60
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Wed Oct 14 22:47:09 2020 +0300

    applet-frame: don't try to load applet that does not exist

 gnome-panel/panel-applet-frame.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/gnome-panel/panel-applet-frame.c b/gnome-panel/panel-applet-frame.c
index a9431de72..60698e990 100644
--- a/gnome-panel/panel-applet-frame.c
+++ b/gnome-panel/panel-applet-frame.c
@@ -961,6 +961,11 @@ panel_applet_frame_load_helper (const gchar *iid,
                return;
        }
 
+       if (panel_applets_manager_get_applet_info (iid) == NULL) {
+               panel_applet_frame_loading_failed (iid, panel, id);
+               return;
+       }
+
        if (panel_applets_manager_is_applet_disabled (iid, NULL)) {
                panel_object_loader_stop_loading (id);
                return;