message: Fixed bug for function formatErrorMessage
  The name property is `null` unless alias the field name
diff: @@ -425,7 +425,7 @@ export default class Validator
  _getLocalizedParams(rule, scope = '__global__') {
  if (~ ['after', 'before', 'confirmed'].indexOf(rule.name) &&
  rule.params && rule.params[0]) {
  - if (this.$scopes[scope][rule.params[0]]) return [this.$scopes[scope][rule.params[0]].name];
  + if (this.$scopes[scope][rule.params[0]] && this.$scopes[scope][rule.params[0]].name) return [this.$scopes[scope][rule.params[0]].name];
  return [dictionary.getAttribute(LOCALE, rule.params[0], rule.params[0])];
  }
  