$ git clone -n https://src.fedoraproject.org/rpms/cmocka.git /var/lib/mock/f45-build-4085-330/root/chroot_tmpdir/scmroot/cmocka
Cloning into '/var/lib/mock/f45-build-4085-330/root/chroot_tmpdir/scmroot/cmocka'...
$ git fetch origin e2c956f80412848a7db16c23da486732a11b8655:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cmocka
 * [new ref]         e2c956f80412848a7db16c23da486732a11b8655 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2c956f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild