Revert "js: remove unnecessary call to window.onpopstate()"

This reverts commit b7c634de.

panikweb_templates/static/js/specifics.js

@@ -55,6 +55,7 @@ $(function() {
 		}
 		new_content = $($.parseHTML(html)).find('#Changing>*');
 		$main.hide().empty().append(new_content).show();
+		window.onpopstate();
 
 		new_menu = $($.parseHTML(html)).find('#metaNav>*');
 		$metaNav.empty().append(new_menu);