[gegl] operations: fix a buffer leak in softglow

[Michael Henning <mhenning src gnome org>]

commit fe8ebc546ee1bfef02da90a3fad433b750e38ab6
Author: Michael Henning <drawoc darkrefraction com>
Date:   Sat Apr 20 16:37:35 2013 -0400

    operations: fix a buffer leak in softglow

 operations/common/softglow.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/operations/common/softglow.c b/operations/common/softglow.c
index 6c5ab01..c1347fa 100644
--- a/operations/common/softglow.c
+++ b/operations/common/softglow.c
@@ -200,6 +200,7 @@ process (GeglOperation       *operation,
 
   g_object_unref (sampler);
   g_object_unref (dest);
+  g_object_unref (dest_tmp);
 
   whole_region = gegl_operation_source_get_bounding_box (operation, "input");
   gegl_buffer_set_extent (input, whole_region);