--- a/plugins/muc/description.lib.lua	Wed Feb 03 23:02:36 2016 +0100
+++ b/plugins/muc/description.lib.lua	Thu Feb 04 09:18:53 2016 +0100
@@ -24,8 +24,8 @@
 		name = "muc#roomconfig_roomdesc";
 		type = "text-single";
 		label = "Description";
+		value = get_description(event.room) or "";
 	});
-	event.formdata["muc#roomconfig_roomdesc"] = get_description(event.room) or "";
 end
 module:hook("muc-disco#info", add_form_option);
 module:hook("muc-config-form", add_form_option);

--- a/plugins/muc/name.lib.lua	Wed Feb 03 23:02:36 2016 +0100
+++ b/plugins/muc/name.lib.lua	Thu Feb 04 09:18:53 2016 +0100
@@ -30,8 +30,8 @@
 		name = "muc#roomconfig_roomname";
 		type = "text-single";
 		label = "Name";
+		value = get_name(event.room) or "";
 	});
-	event.formdata["muc#roomconfig_roomname"] = get_name(event.room) or "";
 end);
 
 module:hook("muc-config-submitted/muc#roomconfig_roomname", function(event)