$ git clone -n https://src.fedoraproject.org/rpms/containerd.git /var/lib/mock/f41-build-852800-166490/root/chroot_tmpdir/scmroot/containerd
Cloning into '/var/lib/mock/f41-build-852800-166490/root/chroot_tmpdir/scmroot/containerd'...
$ git fetch origin db0b1aec480a59436d519dffc434e864b7ee435f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/containerd
 * [new ref]         db0b1aec480a59436d519dffc434e864b7ee435f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db0b1ae Update to v1.7.21