$ git clone -n https://src.fedoraproject.org/rpms/python-debian.git /var/lib/mock/f45-build-30247-643/root/chroot_tmpdir/scmroot/python-debian
Cloning into '/var/lib/mock/f45-build-30247-643/root/chroot_tmpdir/scmroot/python-debian'...
$ git fetch origin 3cc161d1c9e53fd0358c7b39f82101134969073f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-debian
 * [new ref]         3cc161d1c9e53fd0358c7b39f82101134969073f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3cc161d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild