$ git clone -n https://src.fedoraproject.org/rpms/python-types-pyyaml.git /var/lib/mock/f45-build-33459-669/root/chroot_tmpdir/scmroot/python-types-pyyaml
Cloning into '/var/lib/mock/f45-build-33459-669/root/chroot_tmpdir/scmroot/python-types-pyyaml'...
$ git fetch origin 2ca4556a45f585e24e91bd68f0bf4db23ec542ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-types-pyyaml
 * [new ref]         2ca4556a45f585e24e91bd68f0bf4db23ec542ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ca4556 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild