vendor/assets/javascripts/bootstrap/bootstrap-collapse.js in jombo-0.0.1.beta28 vs vendor/assets/javascripts/bootstrap/bootstrap-collapse.js in jombo-1.0.0

@@ -69,10 +69,10 @@
   , reset: function ( size ) {
       var dimension = this.dimension()
 
       this.$element
         .removeClass('collapse')
-        [dimension](size || '')
+        [dimension](size || 'auto')
         [0].offsetWidth
 
       this.$element.addClass('collapse')
     }