$ git clone -n https://src.fedoraproject.org/rpms/gpm.git /var/lib/mock/f45-build-12949-444/root/chroot_tmpdir/scmroot/gpm
Cloning into '/var/lib/mock/f45-build-12949-444/root/chroot_tmpdir/scmroot/gpm'...
$ git fetch origin 9b5bfc4ca12c91a36bff28a360d7b829e031e64b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gpm
 * [new ref]         9b5bfc4ca12c91a36bff28a360d7b829e031e64b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b5bfc4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild