[gimp/gimp-2-10] Issue #4919: PDF: Order of pages reversed when opening and closing.

[Jehan <jehanp src gnome org>]

commit f31f9b5e216704fc1275ae8c4f3e1de7f62982aa
Author: Jehan <jehan girinstud io>
Date:   Wed Apr 8 20:08:00 2020 +0200

    Issue #4919: PDF: Order of pages reversed when opening and closing.
    
    Let's go with the logics "bottom layer is first", which is also the
    logics in animated formats. Hence changing the layer order on loading
    multi-page PDF.
    
    (cherry picked from commit 809e79f37a8825f799a0affad028c6bba3264d0d)

 plug-ins/common/file-pdf-load.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plug-ins/common/file-pdf-load.c b/plug-ins/common/file-pdf-load.c
index cfb13cb5b6..b2c12fa5a6 100644
--- a/plug-ins/common/file-pdf-load.c
+++ b/plug-ins/common/file-pdf-load.c
@@ -1078,7 +1078,7 @@ load_image (PopplerDocument        *doc,
 
       surface = render_page_to_surface (page, width, height, scale, antialias);
 
-      layer_from_surface (image_ID, page_label, i, surface,
+      layer_from_surface (image_ID, page_label, 0, surface,
                           doc_progress, 1.0 / pages->n_pages);
 
       g_free (page_label);