$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Random.git /var/lib/mock/f45-build-22897-594/root/chroot_tmpdir/scmroot/perl-Data-Random
Cloning into '/var/lib/mock/f45-build-22897-594/root/chroot_tmpdir/scmroot/perl-Data-Random'...
$ git fetch origin 746ed1667c77b2ed82e2a9fac3915091c947c28b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Random
 * [new ref]         746ed1667c77b2ed82e2a9fac3915091c947c28b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 746ed16 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild