Connector::Proxy::Config::Versioned
Fetch values ftom the underlying Config::Versioned repository. On init, the
commit id of the head is written into the local version property and all
further queries are done against this commit id. You can set the version to be
used at any time by passing the commit id (sha1 hash) to
"version".
To advance to the head commit of the underlying repository, use
"fetch_head_commit" to get the id of the
head and set it using "version"
Receive the sha1 commit id of the topmost commit of the underlying repository.