Prevent a warning when there is no profile data to send back from an xmlrpc call.

htdocs/api/xmlrpc/lib.php

@@ -225,6 +225,9 @@ function user_authorise($token, $useragent) {
     // load existing profile information
     $profilefields = array();
     $profile_data = get_records_select_assoc('artefact', "owner=? AND artefacttype IN (" . join(",",array_map(create_function('$a','return db_quote($a);'),array_keys($element_list))) . ")", array($USER->get('id')), '','artefacttype, title');
+    if ($profile_data == false) {
+        $profile_data = array();
+    }
 
     $email = get_field('artefact_internal_profile_email', 'email', 'owner', $sso_session->userid, 'principal', 1);
     if (false == $email) {