checking out ports tree: was Downgrade a pkg

[doug at safeport.com]

On Sat, 4 Oct 2014, Polytropon wrote:

> On the other hand, it should be possible to manually
> check out a specific version of the whole ports tree
> where the port version reflects the required older
> version number. This is mainly a SVN thing. Of course
> this involves building from source, as pkg, with its
> binary package approach, emphasizes the use of release
> or most recent packages.

Will this get the old source?