$ git clone -n https://src.fedoraproject.org/rpms/python-speg.git /var/lib/mock/f45-build-33018-665/root/chroot_tmpdir/scmroot/python-speg
Cloning into '/var/lib/mock/f45-build-33018-665/root/chroot_tmpdir/scmroot/python-speg'...
$ git fetch origin 4ef6b66b2c5617399229b35543955498fdce900b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-speg
 * [new ref]         4ef6b66b2c5617399229b35543955498fdce900b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ef6b66 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild