$ git clone -n https://src.fedoraproject.org/rpms/xfoil.git /var/lib/mock/f45-build-38887-730/root/chroot_tmpdir/scmroot/xfoil
Cloning into '/var/lib/mock/f45-build-38887-730/root/chroot_tmpdir/scmroot/xfoil'...
$ git fetch origin 6b94d0302ba6f098f65ec1796c20ea05546ef7bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfoil
 * [new ref]         6b94d0302ba6f098f65ec1796c20ea05546ef7bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b94d03 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild