Add domain_description to the same domains array when changing tenants.

core/domain_settings/domains.php

@@ -61,6 +61,7 @@ else {
 						}
 						$_SESSION['domains'][$row['domain_uuid']]['domain_uuid'] = $row['domain_uuid'];
 						$_SESSION['domains'][$row['domain_uuid']]['domain_name'] = $row['domain_name'];
+						$_SESSION['domains'][$row['domain_uuid']]['domain_description'] = $row['domain_description'];
 					}
 				}
 				unset($result, $prep_statement);