$ git clone -n https://src.fedoraproject.org/rpms/golang-github-moby-sys.git /var/lib/mock/f39-build-1503823-34988/root/chroot_tmpdir/scmroot/golang-github-moby-sys
Cloning into '/var/lib/mock/f39-build-1503823-34988/root/chroot_tmpdir/scmroot/golang-github-moby-sys'...
$ git fetch origin a07ad953bed1811854c200902a7bf09e1920052c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-moby-sys
 * [new ref]         a07ad953bed1811854c200902a7bf09e1920052c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a07ad95 update to sequential/v0.5.0