The flag was proven end to end over the real snapshot, digest and derived
wires, which is the right place to show that it arrives and the wrong place
to be the only proof of what it means. That suite needs a container runtime,
so on a machine without one the definition stood unguarded: replacing the
default side of the comparison with the unnarrowed catalogue, the exact
mistake the docblock warns about, left the whole unit suite green.
The definition now has its own fast test, and that break takes two of its
cases red.
Marc-André Bombeck
78fe4d8eea