[gnome-photos] main-window: Fix a GLib warning

[Debarshi Ray <debarshir src gnome org>]

commit 17a2cfb1f0e26791ffbf9c84f9c6fe29121316d4
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Jan 9 11:25:48 2014 +0100

    main-window: Fix a GLib warning
    
    We forgot to clear the timeout ID when the handler was fired, which
    would lead us to remove a source that does not exist anymore.
    
    Original patch from Cosimo Cecchi for gnome-documents.

 src/photos-main-window.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-main-window.c b/src/photos-main-window.c
index e58dca0..d8417f8 100644
--- a/src/photos-main-window.c
+++ b/src/photos-main-window.c
@@ -87,7 +87,9 @@ photos_main_window_configure_id_timeout (gpointer user_data)
 {
   PhotosMainWindow *self = PHOTOS_MAIN_WINDOW (user_data);
 
+  self->priv->configure_id = 0;
   photos_main_window_save_geometry (self);
+
   return G_SOURCE_REMOVE;
 }