[evolution] Bug 678606 - Crash under mail_backend_folder_deleted_cb()

[Matthew Barnes <mbarnes src gnome org>]

commit 73a55d4cc53e7c679f410dab3a79469ad1b78e5c
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sat Jul 7 07:16:17 2012 -0400

    Bug 678606 - Crash under mail_backend_folder_deleted_cb()

 mail/e-mail-backend.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/mail/e-mail-backend.c b/mail/e-mail-backend.c
index 075f0b0..e0213f6 100644
--- a/mail/e-mail-backend.c
+++ b/mail/e-mail-backend.c
@@ -484,6 +484,9 @@ mail_backend_folder_deleted_cb (MailFolderCache *folder_cache,
 			e_source_mail_submission_get_sent_folder (
 			E_SOURCE_MAIL_SUBMISSION (extension));
 
+		if (sent_folder_uri == NULL)
+			continue;
+
 		if (class->equal_folder_name (sent_folder_uri, uri)) {
 			GError *error = NULL;