buildouts with svn, https port :443 - certificate validation failure (non-interactive) causes buildout to fail

[Graham Perrin]

= Steps to reproduce =

 1. install from Plone-3.0.5-UnifiedInstallerBuildout-a4
 2. customise buildout.cfg to include some svn https: requirement
 3. buildout

If the user has not, at that host, previously accepted (p)ermanently the related Certificate, then the buildout may fail. Example below.

== Workaround ==

Before buildout, somehow accept all Certificates that will be required during buildout.

= Suggestion =

Might a future version of a script within a Plone-n.n.n-UnifiedInstallerBuildout allow for interactive acceptance of such certificates?

Additional detail at http://dev.plone.org/plone/ticket/7676 (where the report/suggestion was first made).