[gom] filter: Free subfilters

[Mathieu Bridon <mbridon src gnome org>]

commit e6a7d03daa40610ae47a1718c84e77537a1612d4
Author: Mathieu Bridon <bochecha daitauha fr>
Date:   Sat Nov 29 09:43:34 2014 +0100

    filter: Free subfilters
    
    https://bugzilla.gnome.org/show_bug.cgi?id=740872

 gom/gom-filter.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gom/gom-filter.c b/gom/gom-filter.c
index 381b25c..5e99652 100644
--- a/gom/gom-filter.c
+++ b/gom/gom-filter.c
@@ -427,6 +427,9 @@ gom_filter_finalize (GObject *object)
       g_value_unset(&priv->value);
    }
 
+   g_clear_object (&priv->left);
+   g_clear_object (&priv->right);
+
    G_OBJECT_CLASS(gom_filter_parent_class)->finalize(object);
 }