Absence means "this derivation does not report provenance yet", not "nothing is known" — so a
consumer needs to know where to expect it. Everything under these prefixes is annotated for every
setting the derivation considers, whether or not it ends up in the options.
Which options carry provenance today.
Absence means "this derivation does not report provenance yet", not "nothing is known" — so a consumer needs to know where to expect it. Everything under these prefixes is annotated for every setting the derivation considers, whether or not it ends up in the options.