--rc appended a bare -rc suffix regardless of the version passed, so
every candidate of a train uploaded over the same omarchy-X.Y.Z-rc.iso
and nobody could tell rc1 from rc2 by name or URL. A version that
already numbers its candidate (4.0.2rc2) is the complete artifact name;
the suffix remains for unnumbered candidate builds.
Ryan Hughes
f9be60b24b