[gegl] antialias: propagate space

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

commit bb9f735a9e459a9c8e1d812dfed4f425b093561d
Author: Øyvind Kolås <pippin gimp org>
Date:   Fri Jul 6 11:08:47 2018 +0200

    antialias: propagate space

 operations/common-gpl3+/antialias.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/common-gpl3+/antialias.c b/operations/common-gpl3+/antialias.c
index 9785e0585..bcc5786a8 100644
--- a/operations/common-gpl3+/antialias.c
+++ b/operations/common-gpl3+/antialias.c
@@ -54,9 +54,9 @@ prepare (GeglOperation *operation)
   GeglOperationAreaFilter *op_area = GEGL_OPERATION_AREA_FILTER (operation);
 
   if (input_format == NULL || babl_format_has_alpha (input_format))
-    format = babl_format ("R'G'B'A float");
+    format = babl_format_with_space ("R'G'B'A float", input_format);
   else
-    format = babl_format ("R'G'B' float");
+    format = babl_format_with_space ("R'G'B' float", input_format);
 
   gegl_operation_set_format (operation, "input", format);
   gegl_operation_set_format (operation, "output", format);