$ git clone -n https://src.fedoraproject.org/rpms/python-rfc3987.git /var/lib/mock/f45-build-32781-662/root/chroot_tmpdir/scmroot/python-rfc3987
Cloning into '/var/lib/mock/f45-build-32781-662/root/chroot_tmpdir/scmroot/python-rfc3987'...
$ git fetch origin 5a167924a4a747b136a6dc0ae98b18982e256da4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rfc3987
 * [new ref]         5a167924a4a747b136a6dc0ae98b18982e256da4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a16792 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild