[gegl] svg-hurerotate: propagate BablSpace

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

commit 8a4be80813caedddf68e6451ff9dcf68ca82cb86
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Jul 5 22:47:45 2018 +0200

    svg-hurerotate: propagate BablSpace

 operations/common/svg-huerotate.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/operations/common/svg-huerotate.c b/operations/common/svg-huerotate.c
index 42921a6d6..63504e787 100644
--- a/operations/common/svg-huerotate.c
+++ b/operations/common/svg-huerotate.c
@@ -39,7 +39,8 @@ property_string (values, _("Values"), "")
 
 static void prepare (GeglOperation *operation)
 {
-  const Babl *format = babl_format ("RaGaBaA float");
+  const Babl *space = gegl_operation_get_source_space (operation, "input");
+  const Babl *format = babl_format_with_space ("RaGaBaA float", space);
 
   gegl_operation_set_format (operation, "input", format);
   gegl_operation_set_format (operation, "output", format);