$ git clone -n https://src.fedoraproject.org/rpms/python-periodictable.git /var/lib/mock/f45-build-31923-656/root/chroot_tmpdir/scmroot/python-periodictable
Cloning into '/var/lib/mock/f45-build-31923-656/root/chroot_tmpdir/scmroot/python-periodictable'...
$ git fetch origin 9ce4bd7b1e805cd5eaa84d41a95c095ede1d1309:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-periodictable
 * [new ref]         9ce4bd7b1e805cd5eaa84d41a95c095ede1d1309 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ce4bd7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild