[gegl] rectangle.c: plug a memory leak in gegl:rectangle

[Massimo Valentini <mvalentini src gnome org>]

commit 0f63f0097e2bdd3b82aeee24b5bd5661bd256591
Author: Massimo Valentini <mvalentini src gnome org>
Date:   Sun Oct 13 16:51:24 2013 +0200

    rectangle.c: plug a memory leak in gegl:rectangle

 operations/common/rectangle.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/operations/common/rectangle.c b/operations/common/rectangle.c
index 7414f10..bf0a8f0 100644
--- a/operations/common/rectangle.c
+++ b/operations/common/rectangle.c
@@ -75,6 +75,7 @@ do_setup (GeglOperation *operation)
         gegl_node_set (self->color,
                        "value", o->color,
                        NULL);
+      g_object_unref (self->color);
     }
 
     {