$ git clone -n https://src.fedoraproject.org/rpms/lsof.git /var/lib/mock/f45-build-17526-501/root/chroot_tmpdir/scmroot/lsof
Cloning into '/var/lib/mock/f45-build-17526-501/root/chroot_tmpdir/scmroot/lsof'...
$ git fetch origin b7ce407383bdcd454ab8199027702b9263beb8a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lsof
 * [new ref]         b7ce407383bdcd454ab8199027702b9263beb8a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7ce407 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild