With no plan left to name a build or a send to keep the plans, a want names what a collection must keep, and the
composition is where the provisioner's plans are composed for the assignments mirror (ADR 0539 clauses 1 and 5);
the assignments no longer name a node's build, so the controller replaced is the newest earlier build of it.
The three tests of the controller's own module.json (process, claimed seat, addresses), the Dockerfile and Makefile pin test, the build-agent registry test and the manifest-in-use seat test move with their old package, as tests of mesh-sdk's exported API; a moved test is exempt from failing first.