view .arcconfig @ 44591:1f81f680912f

templater: remember cache key of evaluated revset

This provides a hint for caching further computation result of the given
revset. See the next patch for example.

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "phabricator.uri": "https://phab.mercurial-scm.org/",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}