Merge branch 'main' into 'main'

shell-util: Fix a memory leak of a floating variant on error

See merge request GNOME/gnome-shell!3396

src/shell-util.c

@@ -619,6 +619,7 @@ shell_util_systemd_call (const char           *command,
                          gpointer              user_data)
 {
   g_autoptr (GTask) task = g_task_new (NULL, cancellable, callback, user_data);
+  g_autoptr (GVariant) params_owned = g_variant_ref_sink (g_steal_pointer (&params));
 
 #ifdef HAVE_SYSTEMD
   g_autoptr (GDBusConnection) connection = NULL;
@@ -695,7 +696,7 @@ shell_util_systemd_call (const char           *command,
                           "/org/freedesktop/systemd1",
                           "org.freedesktop.systemd1.Manager",
                           command,
-                          params,
+                          params_owned,
                           G_VARIANT_TYPE ("(o)"),
                           G_DBUS_CALL_FLAGS_NONE,
                           -1, cancellable,