$ git clone -n https://src.fedoraproject.org/rpms/python-psycopg3.git /var/lib/mock/f41-build-757018-13423/root/chroot_tmpdir/scmroot/python-psycopg3
Cloning into '/var/lib/mock/f41-build-757018-13423/root/chroot_tmpdir/scmroot/python-psycopg3'...
$ git fetch origin d9aa18b336bd709a15533cd1274d70620a0e18d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-psycopg3
 * [new ref]         d9aa18b336bd709a15533cd1274d70620a0e18d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9aa18b Make Cython and PyPy conditional, and only enable on Fedora for now