view .arcconfig @ 42199:6dd454e5b123

phabricator: don't assume the existence of properties of local:commits

Not all the properties are guaranteed to be there, so if we don't check first
we could die with a KeyError.

Differential Revision: https://phab.mercurial-scm.org/D6299

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