The second pass of theRestOfTheMesh resolved every machine without its pins. Since a machine with two
providers of one provision is refused unless a pin names one (195/196), the control node was refused
there and vanished: every seat it holds read as unheld, the build machine refused what needs the git
seat, the roll-out was refused — and nothing said why (hq issue 188). Each machine is now resolved as
its plan resolves it, with its pins; a machine left out is named with the resolver's words.