[dconf: 1/6] Engine: add some missing objects to dconf_engine_unref

[Daniel Playfair Cal <danielplayfaircal src gnome org>]

commit 6e6089791b38b4da84d5b49c0b24286be1526a2b
Author: Daniel Playfair Cal <daniel playfair cal gmail com>
Date:   Wed Jul 25 23:58:26 2018 +1000

    Engine: add some missing objects to dconf_engine_unref

 engine/dconf-engine.c | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/engine/dconf-engine.c b/engine/dconf-engine.c
index c0ff12d..2a99eab 100644
--- a/engine/dconf-engine.c
+++ b/engine/dconf-engine.c
@@ -289,11 +289,20 @@ dconf_engine_unref (DConfEngine *engine)
 
       g_free (engine->last_handled);
 
+      while (!g_queue_is_empty (&engine->pending))
+        dconf_changeset_unref ((DConfChangeset *) g_queue_pop_head (&engine->pending));
+
+      while (!g_queue_is_empty (&engine->in_flight))
+        dconf_changeset_unref ((DConfChangeset *) g_queue_pop_head (&engine->in_flight));
+
       for (i = 0; i < engine->n_sources; i++)
         dconf_engine_source_free (engine->sources[i]);
 
       g_free (engine->sources);
 
+      g_hash_table_unref(engine->pending_paths);
+      g_hash_table_unref(engine->watched_paths);
+
       if (engine->free_func)
         engine->free_func (engine->user_data);