mindmap macro fails to generate a https url

mindmap macro is only creating urls with http.
Here is a patch to fix this problem.

— macros.vm.orig 2008-06-27 14:50:32.000000000 +0200
+++ macros.vm 2008-06-27 14:59:06.000000000 +0200
@@ -264,7 +264,7 @@
#set($mmurl = $mindmap)
#else
#set($mmurl1 = $doc.getAttachmentURL($mindmap,"download"))
-#set($mmurl = "http://${request.serverName}:${request.serverPort}${mmurl1}")
+#set($mmurl = "${request.scheme}://${request.serverName}:${request.serverPort}${mmurl1}")
#end
#end
<applet code="freemind.main.FreeMindApplet.class" archive="${request.contextPath}/freemind/freemind.jar" width="${width}" height="${height}">