decode $m->request_args->{Query} first to avoid double encode

html/Callbacks/JSGantt/Elements/Tabs/Privileged

@@ -50,8 +50,9 @@ my $request_path = $HTML::Mason::Commands::r->path_info;
 
 if ( $request_path =~ qr{^/Search/Results.html} ) {
     my $tabs = PageMenu;
+    require Encode;
     $tabs->child( 'gantt' => title => loc('Gantt Chart'),
-                    path => '/Search/JSGantt.html?Query=' .$m->request_args->{'Query'} );
+                    path => '/Search/JSGantt.html?Query=' . Encode::decode_utf8 $m->request_args->{'Query'} );
 }
 
 </%INIT>