$ git clone -n https://src.fedoraproject.org/rpms/python-aiohttp.git /var/lib/mock/f40-build-2418251-60573/root/chroot_tmpdir/scmroot/python-aiohttp
Cloning into '/var/lib/mock/f40-build-2418251-60573/root/chroot_tmpdir/scmroot/python-aiohttp'...
$ git fetch origin e2f8143e7372f320fbabb549464a7980c99cda47:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-aiohttp
 * [new ref]         e2f8143e7372f320fbabb549464a7980c99cda47 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2f8143 Rebuilt for llhttp-9.2.0