$ git clone -n https://src.fedoraproject.org/rpms/python-pyrate-limiter.git /var/lib/mock/f39-build-1651457-40490/root/chroot_tmpdir/scmroot/python-pyrate-limiter
Cloning into '/var/lib/mock/f39-build-1651457-40490/root/chroot_tmpdir/scmroot/python-pyrate-limiter'...
$ git fetch origin 63bb4d39831d2afb3c5eb85f779342ba8b83d407:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyrate-limiter
 * [new ref]         63bb4d39831d2afb3c5eb85f779342ba8b83d407 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63bb4d3 Updated sources for 3.1.0