[bijiben] provider: add a check to get note icon

[Pierre-Yves Luyten <pyluyten src gnome org>]

commit 88e099f54b4efbeb4348af2f4a946824dcfd2545
Author: Pierre-Yves Luyten <py luyten fr>
Date:   Mon Jan 18 22:28:39 2016 +0100

    provider: add a check to get  note icon

 src/bijiben-shell-search-provider.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/bijiben-shell-search-provider.c b/src/bijiben-shell-search-provider.c
index 4ef4c06..80a1bdb 100644
--- a/src/bijiben-shell-search-provider.c
+++ b/src/bijiben-shell-search-provider.c
@@ -214,7 +214,7 @@ get_note_icon (BijibenShellSearchProviderApp *self,
 
   gicon = NULL;
   item = biji_manager_get_item_at_path (self->manager, note__nie_url);
-  if (item != NULL)
+  if (item != NULL && BIJI_IS_ITEM(item))
     {
       /* Load the icon from the note */
       cairo_surface_t *surface = biji_item_get_icon (item, scale_factor);