$ git clone -n https://src.fedoraproject.org/rpms/python-pyrate-limiter.git /var/lib/mock/f40-build-2223139-52727/root/chroot_tmpdir/scmroot/python-pyrate-limiter
Cloning into '/var/lib/mock/f40-build-2223139-52727/root/chroot_tmpdir/scmroot/python-pyrate-limiter'...
$ git fetch origin 658cb95a537f9dc60150b809ed11e5ed86fc8a9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyrate-limiter
 * [new ref]         658cb95a537f9dc60150b809ed11e5ed86fc8a9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 658cb95 3.2.0