view .arcconfig @ 43752:657bdb724b47

localrepo: extract handling of some special value in __getitem__

The value "tip" should always be accessible, otherwise there is some problematic
bug in the lower level. So we can access this outside of the general try/catch.
If it fails some wider and actual big is in play.

Differential Revision: https://phab.mercurial-scm.org/D7475

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