Fix 500 when saving /site/edit without email When saving /site/edit with no no_reply_email set, a 500 error page would be returned due to an empty value being passed as value to the datastore (which is not allowed for email fields).

Remove __melange_queries logging It causes the local instance to become very slow, as it has to pickle all queries. A better solution would be to store them in the per request value store and then add middleware to store that data at end-of-request.