Fix #1879 -- Do not add a tab’s hash/id to location.hash if it is inside a .panel (#1881)

Co-authored-by: Raphael Michel <michel@rami.io>

src/pretix/static/pretixcontrol/js/ui/main.js

@@ -614,7 +614,10 @@ $(function () {
         $('.nav-tabs a[href="#' + url.split('#')[1] + '"]').tab('show');
     }
     $('a[data-toggle="tab"]').on('click', function (e) {
-        window.location.hash = e.target.hash;
+        if (!$(this).closest(".tab-content").length) {
+            // only append hash if not inside a .panel
+            window.location.hash = this.hash;
+        }
     });
 
     // Event wizard