[babl/wip/pippin/inverted-cmyk] add XXX todo marker to babl_sanity

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 9707c3bcc82e854f9e2d0851182278fe9052d8c1
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed Nov 21 01:38:42 2018 +0100

    add XXX todo marker to babl_sanity

 babl/babl-sanity.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/babl/babl-sanity.c b/babl/babl-sanity.c
index 2c18d56..1e84e3e 100644
--- a/babl/babl-sanity.c
+++ b/babl/babl-sanity.c
@@ -79,7 +79,7 @@ model_sanity (Babl *babl,
     {
       for (i = 0; i < babl_list_size (list); i++)
         {
-          if (babl_conversion_destination ((Babl *) list->items[i]) == babl_model_from_id (BABL_RGBA))
+          if (babl_conversion_destination ((Babl *) list->items[i]) == babl_model_from_id (BABL_RGBA)) // 
XXX  the cmyk referense space should also be valid here
             {
               ok = 1;
               break;