$ git clone -n https://src.fedoraproject.org/rpms/frogr.git /var/lib/mock/f45-build-9282-401/root/chroot_tmpdir/scmroot/frogr
Cloning into '/var/lib/mock/f45-build-9282-401/root/chroot_tmpdir/scmroot/frogr'...
$ git fetch origin c129f235ff48f41b0963b30d1b0c4e5862c9c875:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/frogr
 * [new ref]         c129f235ff48f41b0963b30d1b0c4e5862c9c875 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c129f23 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild