Merge pull request #13576 from twbs/fat-12211

fixes #12211: Scrollspy: Navs in different tabs can interfere with each ...

js/scrollspy.js

@@ -46,6 +46,7 @@
 
     this.$body
       .find(this.selector)
+      .filter(':visible')
       .map(function () {
         var $el   = $(this)
         var href  = $el.data('target') || $el.attr('href')