[epiphany] web-overview-model: Fix crashes introduced by 1fbc5740

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 9d0ff7ca0d2732c0752073b5eeafca6ebe5a4dbf
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sat Mar 2 11:00:51 2019 -0600

    web-overview-model: Fix crashes introduced by 1fbc5740
    
    Maybe doing autoptr work when tired is not such a good idea.

 embed/web-extension/ephy-web-overview-model.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/embed/web-extension/ephy-web-overview-model.c b/embed/web-extension/ephy-web-overview-model.c
index fe648fdb4..d36b4856d 100644
--- a/embed/web-extension/ephy-web-overview-model.c
+++ b/embed/web-extension/ephy-web-overview-model.c
@@ -108,7 +108,7 @@ ephy_web_overview_model_urls_to_js_value (EphyWebOverviewModel *model,
     value = jsc_value_new_string (js_context, item->title);
     jsc_value_object_set_property (js_item, "title", value);
 
-    g_ptr_array_add (urls, js_item);
+    g_ptr_array_add (urls, g_steal_pointer (&js_item));
   }
 
   return urls;