.arcconfig

sparse-revlog: also use sparse-revlog config as a general delta trigger

Sparse revlog rely on general delta, so we should make sure it is used.

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