$ git clone -n https://src.fedoraproject.org/rpms/python-starlette.git /var/lib/mock/f41-build-side-2-python-2716332-30552/root/chroot_tmpdir/scmroot/python-starlette
Cloning into '/var/lib/mock/f41-build-side-2-python-2716332-30552/root/chroot_tmpdir/scmroot/python-starlette'...
$ git fetch origin f74d9a3eac36df7f5eb452bdb0655af4e724c9c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-starlette
 * [new ref]         f74d9a3eac36df7f5eb452bdb0655af4e724c9c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f74d9a3 Update to 0.38.5 (close RHBZ#2310721)