[gegl] ditto: add reference-hash

[Øyvind Kolås <ok src gnome org>]

commit 6705e8c6614378dc6f62d520183c36e9cf6de846
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Nov 11 21:54:12 2017 +0100

    ditto: add reference-hash

 operations/workshop/ditto.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/operations/workshop/ditto.c b/operations/workshop/ditto.c
index 54132e0..8be3d93 100644
--- a/operations/workshop/ditto.c
+++ b/operations/workshop/ditto.c
@@ -112,6 +112,7 @@ gegl_op_class_init (GeglOpClass *klass)
   "categories"  , "distort",
   "name"        , "gegl:ditto",
   "title"       , _("Ditto"),
+  "reference-hash", "bfe9694dd26005f259881d765b719205",
   "description" , _("Test op to do a 1:1 map of input to output, while sampling"),
   NULL);
 }