The base was a digest typed in by hand, for an image nothing in the mesh could
produce — so the graph held edges pointing at it with no version on the far end,
and the one change that reaches every module at once could never be noticed.
It is a module now, and these edges resolve.
Its provisioner container named an image nobody could produce — a zero digest
placeholder. It names an artifact instead, and the module says how to build it,
so the mesh can make the database provider the catalogue needs.
jschoubben