Ports: appears twice in the hostmaster install wizard

Issue Summary

The Ports field appears twice in the hostmaster install wizard on a fresh install: first on the Webserver configuration page, and again on the next page (Filesystem)

I think it might be because both hostmaster_task_webserver() and hostmaster_task_filesystem() define $form = node_form($form_state, node_load(HOSTING_OWN_WEB_SERVER));

but I haven't had the time to work it out yet.

(why can't I select HEAD in the hostmaster versions when submitting a ticket)