[gthumb] viewer: fixed logic to set the modified image

[Paolo Bacchilega <paobac src gnome org>]

commit 71b0e3e8e6cac8fdf0f360481fc2ebde899ad48c
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Oct 6 14:28:53 2013 +0200

    viewer: fixed logic to set the modified image

 extensions/image_viewer/gth-image-viewer-page.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/extensions/image_viewer/gth-image-viewer-page.c b/extensions/image_viewer/gth-image-viewer-page.c
index 5b5d99f..69c5108 100644
--- a/extensions/image_viewer/gth-image-viewer-page.c
+++ b/extensions/image_viewer/gth-image-viewer-page.c
@@ -1435,7 +1435,7 @@ _gth_image_viewer_page_set_image (GthImageViewerPage *self,
        if (image == NULL)
                return;
 
-       if (requested_size == -1)
+       if (modified)
                gth_image_preloader_set_modified_image (self->priv->preloader, image);
        gth_image_viewer_set_surface (GTH_IMAGE_VIEWER (self->priv->viewer), image, -1, -1);
        gth_image_viewer_set_requested_size (GTH_IMAGE_VIEWER (self->priv->viewer), requested_size);