[evolution] e_mail_config_service_backend_get_settings: Another corner case.

[Matthew Barnes <mbarnes src gnome org>]

commit 6bb4295b9210b1d5b6c36214c06fecdb0b17a075
Author: Matthew Barnes <mbarnes redhat com>
Date:   Thu Feb 28 12:35:48 2013 -0500

    e_mail_config_service_backend_get_settings: Another corner case.
    
    ESourceCollection's default backend name is "none".  Unfortunately so
    is CamelNullStore's provider name.  Make sure these two misfits don't
    get paired up!

 mail/e-mail-config-service-backend.c |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/mail/e-mail-config-service-backend.c b/mail/e-mail-config-service-backend.c
index c6c42ae..8cd984d 100644
--- a/mail/e-mail-config-service-backend.c
+++ b/mail/e-mail-config-service-backend.c
@@ -404,10 +404,15 @@ e_mail_config_service_backend_get_settings (EMailConfigServiceBackend *backend)
                backend_name =
                        e_source_backend_get_backend_name (backend_extension);
 
-               extension_name =
-                       e_source_camel_get_extension_name (backend_name);
-               camel_extension =
-                       e_source_get_extension (source, extension_name);
+               /* XXX ESourceCollection's default backend name is "none".
+                *     Unfortunately so is CamelNullStore's provider name.
+                *     Make sure these two misfits don't get paired up! */
+               if (g_strcmp0 (backend_name, "none") != 0) {
+                       extension_name =
+                               e_source_camel_get_extension_name (backend_name);
+                       camel_extension =
+                               e_source_get_extension (source, extension_name);
+               }
        }
 
        if (camel_extension == NULL) {