view .arcconfig @ 42232:29798c9ba5c9 stable

parser: fix crash by parsing "()" in keyword argument position

A tree node can be either None or a tuple because x=("group", None) is
reduced to x[1].

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