Fix bug.

app/assets/javascripts/archive/archive_frontend.js

@@ -9,6 +9,9 @@ $(document).ready(function(){
             }
         }
     }
+    $(window).on('hashchange', function(){
+        collapse_init();
+    })
     collapse_init();
     $('.i-archive .panel-heading, .w-archive .panel-heading').each(function(i, v){
       var $v = $(v);