This field was added in https://github.com/moby/moby/commit/19515a7ad859b28c474d81e756ac245afcd968e3,
but looks to be always set for endpoints used, so we can trim remote names
unconditionally.
This option was added for possible future expansion, allowing registry-
mirrors to get the full reference of the image (including domain-name),
for them to host a mirror for multiple upstreams on the same registry.
That approach will unlikely be implemented, and containerd has a different
approach for this, where the reference to the original registry is passed
through a query parameter instead.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn
afab765014