Collapse extension

[Dennis Brakhane]

On Sun, Apr 5, 2009 at 10:01 AM, Colin Caughie
<c.caughie at indigovision.com> wrote:
> [...] This is useful if you want to collapse a set of revisions relating to a particular task, but you've since made several commits for a new task that you don't yet want to collapse.

Keep in mind that this will change the revids of all commits made
after the commits you want to join, so you better not have pushed
already.