[gthumb] memory error: add a reference to profile

[Paolo Bacchilega <paobac src gnome org>]

commit d3531844694a80272aa149fcfdb2fc062c63729a
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Tue Jun 27 17:01:25 2017 +0200

    memory error: add a reference to profile

 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 fa67c96..b19bc31 100644
--- a/extensions/image_viewer/gth-image-viewer-page.c
+++ b/extensions/image_viewer/gth-image-viewer-page.c
@@ -263,7 +263,7 @@ profile_ready_cb (GObject      *source_object,
 
        profile = gth_color_manager_get_profile_finish (GTH_COLOR_MANAGER (source_object), res, NULL);
        if (profile == NULL)
-               profile = gth_browser_get_monitor_profile (self->priv->browser);
+               profile = _g_object_ref (gth_browser_get_monitor_profile (self->priv->browser));
        gth_image_preloader_set_out_profile (self->priv->preloader, profile);
 
        _gth_image_viewer_page_load_with_preloader_step2 (profile_data->self,