[gegl] noise-cie-lch: propagate space

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

commit c472a7aabb0abe640b5cb5d5ecbd044419c21dc4
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Jul 5 22:53:47 2018 +0200

    noise-cie-lch: propagate space

 operations/common/noise-cie-lch.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/operations/common/noise-cie-lch.c b/operations/common/noise-cie-lch.c
index a0457aae1..eaab11119 100644
--- a/operations/common/noise-cie-lch.c
+++ b/operations/common/noise-cie-lch.c
@@ -99,10 +99,11 @@ randomize_value (gfloat      now,
 static void
 prepare (GeglOperation *operation)
 {
+  const Babl *space = gegl_operation_get_source_space (operation, "input");
   gegl_operation_set_format (operation, "input" ,
-                             babl_format ("CIE LCH(ab) alpha float"));
+                             babl_format_with_space ("CIE LCH(ab) alpha float", space));
   gegl_operation_set_format (operation, "output",
-                             babl_format ("CIE LCH(ab) alpha float"));
+                             babl_format_with_space ("CIE LCH(ab) alpha float", space));
 }
 
 static gboolean