Don't fallback back immediately to blob upload if the cross-repo mount fails and layer upload is initiated by registry. Instead cancel the upload and re-try cross-repo mount from different source repository before doing full re-upload. Signed-off-by: Michal Minář <miminar@redhat.com> Upstream-commit: c6dd51c32cfccc06e77b4f7cb2358f788753df72 Component: engine