$ git clone -n https://src.fedoraproject.org/rpms/golang-github-containerd-ttrpc.git /var/lib/mock/f39-build-2044800-48720/root/chroot_tmpdir/scmroot/golang-github-containerd-ttrpc
Cloning into '/var/lib/mock/f39-build-2044800-48720/root/chroot_tmpdir/scmroot/golang-github-containerd-ttrpc'...
$ git fetch origin f6d3045a9c2ea0e779ae11bb5967dda510f2bdc1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-containerd-ttrpc
 * [new ref]         f6d3045a9c2ea0e779ae11bb5967dda510f2bdc1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6d3045 Fix for https://bugzilla.redhat.com/show_bug.cgi?id=2237396