Multiple 'show more' links after js reload

While using the flag module to flag search results I noticed that with every flag ajax call an extra 'Show more' link was added to all the facet blocks.

Adding a once() in Drupal.facetapi.applyLimit() (line 40; facetapi.js) fixed this.

$ git diff -w sites/all/modules/contrib/facetapi/facetapi.js
diff --git a/sites/all/modules/contrib/facetapi/facetapi.js b/sites/all/modules/contrib/facetapi/facetapi.js
index d05cf23..7a12c57 100644
--- a/sites/all/modules/contrib/facetapi/facetapi.js
+++ b/sites/all/modules/contrib/facetapi/facetapi.js
@@ -37,7 +37,7 @@ Drupal.facetapi.applyLimit = function(settings) {
     // Adds "Show more" / "Show fewer" links as appropriate.
     $('ul#' + settings.id).filter(function() {
       return $(this).find('li').length > settings.limit;
-    }).each(function() {
+    }).once().each(function() {
       $('<a href="#" class="facetapi-limit-link"></a>').text(Drupal.t('Show more')).click(function() {
         if ($(this).prev().find('li:hidden').length > 0) {
           $(this).prev().find('li:gt(' + limit + ')').slideDown();