Unlike git, the Mercurial "checkout" command only offers a "Clean Build" option which is used to purge the working directory.

We need an equivalent of the "Wipe workspace and force clone" functionality available to the git plugin. Specifically, I am running into problems where the local repository contains more commits than the remote which is causing problems. I need to force a re-clone; otherwise, the script will need to be able to recover from a partially-updated repository after a failed build.