$ git clone -n https://src.fedoraproject.org/rpms/python-aiohttp.git /var/lib/mock/f45-build-29290-637/root/chroot_tmpdir/scmroot/python-aiohttp
Cloning into '/var/lib/mock/f45-build-29290-637/root/chroot_tmpdir/scmroot/python-aiohttp'...
$ git fetch origin 8aeec55ba941e3499c249bb87642b51d39759a36:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-aiohttp
 * [new ref]         8aeec55ba941e3499c249bb87642b51d39759a36 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8aeec55 Preemptively patch for Cython 3.3 compatibility