[gegl] unpremultiply: add reference hash

[Øyvind Kolås <ok src gnome org>]

commit 11f2dc8385ff8e0ebaead61ea765d978bcd71157
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Oct 14 03:16:35 2017 +0200

    unpremultiply: add reference hash

 operations/common/unpremultiply.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/operations/common/unpremultiply.c b/operations/common/unpremultiply.c
index 050fedf..a8ac340 100644
--- a/operations/common/unpremultiply.c
+++ b/operations/common/unpremultiply.c
@@ -76,6 +76,7 @@ gegl_op_class_init (GeglOpClass *klass)
     "name"        , "gegl:unpremultiply",
     "categories"  , "color",
     "title"       , _("Unpremultiply alpha"),
+    "reference-hash", "1e2a03d51d8cc5868c1921fdee58b2c9",
     "description" , _("Unpremultiplies a buffer that contains pre-multiplied colors (but according to the 
babl format is not.)"),
     NULL);
 }