[evolution] Avoid a crash when building templates menu.

[Matthew Barnes <mbarnes src gnome org>]

commit ffd6e528086d2c752f61c71332c3526d11473661
Author: Matthew Barnes <mbarnes redhat com>
Date:   Fri Dec 3 15:36:40 2010 -0600

    Avoid a crash when building templates menu.

 plugins/templates/templates.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/plugins/templates/templates.c b/plugins/templates/templates.c
index bca45f0..625c702 100644
--- a/plugins/templates/templates.c
+++ b/plugins/templates/templates.c
@@ -618,6 +618,11 @@ build_template_menus_recurse (GtkUIManager *ui_manager,
 			/* FIXME Not passing a GCancellable or GError here. */
 			template = camel_folder_get_message_sync (
 				folder, uid, NULL, NULL);
+
+			/* FIXME Do something more intelligent with errors. */
+			if (template == NULL)
+				continue;
+
 			g_object_ref (template);
 
 			action_label =