$ git clone -n https://src.fedoraproject.org/rpms/python-anytree.git /var/lib/mock/f45-build-29372-637/root/chroot_tmpdir/scmroot/python-anytree
Cloning into '/var/lib/mock/f45-build-29372-637/root/chroot_tmpdir/scmroot/python-anytree'...
$ git fetch origin 5a627fc11de0e21983f882bc4e63373947771f93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-anytree
 * [new ref]         5a627fc11de0e21983f882bc4e63373947771f93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a627fc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild