pull: pass rev to check out as integer to postincoming()
I don't know if there's ever been a need for it to be a string (it's
been like that since
02f40b2ece3f (commands: use rev from remote repo
when updating as part of a pull, 2009-10-21)). I'm soon going to
require it to be an integer, so let's fix this first.
Differential Revision: https://phab.mercurial-scm.org/D3086
{
"conduit_uri": "https://phab.mercurial-scm.org/api",
"repository.callsign": "HG",
"arc.land.onto.default": "@",
"base": "hg:.^"
}