view .arcconfig @ 37267:de4849b67fe0

context: drop support for changeid='' (API)

Since the previous commit, there seem to be no users who pass '' to
repo.__getitem__, so let's drop support for it.

It may seem like a small cost to keep support for it, but I've spent
time being confused by it twice already.

Differential Revision: https://phab.mercurial-scm.org/D3021

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