[gegl] Fix iterator failing to lock tiles

[Daniel Sabo <daniels src gnome org>]

commit baaa9bf40c76d414a622c845ddf46a7e43a2096b
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Wed Mar 27 18:15:38 2013 -0700

    Fix iterator failing to lock tiles
    
    When buffer->soft_format != buffer->format the tile iterator
    would fail to lock its tiles, but the outer iterator would
    still perform a direct write. This resulted in the modified
    tiles not being flushed to their backend.

 gegl/buffer/gegl-buffer-iterator.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gegl/buffer/gegl-buffer-iterator.c b/gegl/buffer/gegl-buffer-iterator.c
index 61a341e..e4b7933 100644
--- a/gegl/buffer/gegl-buffer-iterator.c
+++ b/gegl/buffer/gegl-buffer-iterator.c
@@ -141,7 +141,7 @@ static void gegl_buffer_tile_iterator_init (GeglBufferTileIterator *i,
   i->max_size = i->buffer->tile_storage->tile_width *
                 i->buffer->tile_storage->tile_height;
 
-  i->same_format = format == buffer->format;
+  i->same_format = format == buffer->soft_format;
 
   /* return at the end,. we still want things initialized a bit .. */
   g_return_if_fail (roi.width != 0 && roi.height != 0);