$ git clone -n https://src.fedoraproject.org/rpms/gprolog.git /var/lib/mock/f45-build-52344-909/root/chroot_tmpdir/scmroot/gprolog
Cloning into '/var/lib/mock/f45-build-52344-909/root/chroot_tmpdir/scmroot/gprolog'...
$ git fetch origin 97cf3075ef44ca5d75c3adcea51c180e9a05b1ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gprolog
 * [new ref]         97cf3075ef44ca5d75c3adcea51c180e9a05b1ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97cf307 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild