$ git clone -n https://src.fedoraproject.org/rpms/python-cerealizer.git /var/lib/mock/f45-build-29885-641/root/chroot_tmpdir/scmroot/python-cerealizer
Cloning into '/var/lib/mock/f45-build-29885-641/root/chroot_tmpdir/scmroot/python-cerealizer'...
$ git fetch origin fd25122661b61fe3f1702c43de5352e363a4c9fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cerealizer
 * [new ref]         fd25122661b61fe3f1702c43de5352e363a4c9fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd25122 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild