$ git clone -n https://src.fedoraproject.org/rpms/cntlm.git /var/lib/mock/f45-build-4116-330/root/chroot_tmpdir/scmroot/cntlm
Cloning into '/var/lib/mock/f45-build-4116-330/root/chroot_tmpdir/scmroot/cntlm'...
$ git fetch origin 50bd845cb41db80b5684e6f88789cd5de9ca5498:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cntlm
 * [new ref]         50bd845cb41db80b5684e6f88789cd5de9ca5498 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50bd845 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild