Compatibility with term reference

I have another compatibility issue with therm reference.
All my content is set up to use English as the main language, then I have translations for all other languages on the site.

If you are viewing a site with a different language, and then edit the node form, which is English, the term names used in autocomplete/tagging term reference fields get the translated name. And when the form is saved, new terms are created using those translated term names.

Since I need this module for my site, and I need this to work properly, and not keep creating new terms if the node is edited when switched to a different language, I came up with a make-shift solution.
I added an element validation callback, similar to how the taxonomy autocomplete does already.
I check the term values to see if any are 'autocreate', then try to find that term name using the current language.

/**
 * Implements hook_field_widget_form_alter()
 * @param array $element
 * @param array $form_state
 * @param array $context
 */
function title_field_widget_form_alter(&$element, &$form_state, $context) {
  if ($context['field']['type'] == 'taxonomy_term_reference') {
    if ($context['instance']['widget']['type'] == 'taxonomy_autocomplete') {
      $element['#element_validate'][] = 'title_taxonomy_reference_field_validate';
    }
  }
}

/**
 * Custom taxonomy term validation
 * @param array $element
 * @param array $form_state
 */
function title_taxonomy_reference_field_validate($element, &$form_state) {
  global $language;
  
  //check if we need to check for translated term names
  if (!empty($form_state['input']['language']) && $language->language != $form_state['input']['language']) {
    // get the replacement field name
    $title_field = title_field_replacement_info('taxonomy_term', 'name');
    $name_field_name = $title_field['field']['field_name'];
  
    if (!empty($form_state['values'][$element['#field_name']][$element['#language']])) {
      foreach ($form_state['values'][$element['#field_name']][$element['#language']] as &$term) {
        // if it wasn't already matched, check against the name existsing in current language
        if ($term['tid'] == 'autocreate') {
          $tid = db_query("SELECT entity_id FROM {field_data_{$name_field_name}}
           WHERE entity_type = 'taxonomy_term' AND bundle = :vocab AND language = :lang AND {$name_field_name}_value LIKE :value", array(
            ':vocab' => $term['vocabulary_machine_name'],
            ':lang' => $language->language,
            ':value' => "%$term[name]%"
          ))->fetchField(0);

          if ($tid) {
            $term = (array)taxonomy_term_load($tid);
          }
        }
      }
    }
  }
}