Comment 2 for bug 851881

StacktraceTop:
 handle_contacts_add_indicator_cb (connection=0x96d42a0, n_contacts=0, contacts=0x0, n_failed=1, failed=0x96d18e0, err=0x96cb9c0, user_data=0x96d7198, weak_object=0x0) at indicator-approver.c:125
 contacts_context_fail (c=0x96b0c70, error=0x96cb9c0) at contact.c:1661
 contacts_got_attributes (connection=0x96d42a0, attributes=0x0, error=0x96cb9c0, user_data=0x96b0c70, weak_object=0x0) at contact.c:3751
 _tp_cli_connection_interface_contacts_invoke_callback_get_contact_attributes (self=0x96d42a0, error=0x96cb9c0, args=0x0, generic_callback=0xdeec30 <contacts_got_attributes>, user_data=0x96b0c70, weak_object=0x0) at _gen/tp-cli-connection-body.h:12175
 tp_proxy_pending_call_idle_invoke (p=0x96df240) at proxy-methods.c:153