$ git clone -n https://src.fedoraproject.org/rpms/golang-github-d2g-dhcp4client.git /var/lib/mock/f45-build-11848-435/root/chroot_tmpdir/scmroot/golang-github-d2g-dhcp4client
Cloning into '/var/lib/mock/f45-build-11848-435/root/chroot_tmpdir/scmroot/golang-github-d2g-dhcp4client'...
$ git fetch origin 62ac130d057b5bcb9b6cd6216dc1c14a719801b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-d2g-dhcp4client
 * [new ref]         62ac130d057b5bcb9b6cd6216dc1c14a719801b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62ac130 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild