$ git clone -n https://src.fedoraproject.org/rpms/python-aiokafka.git /var/lib/mock/f40-build-783710-133093/root/chroot_tmpdir/scmroot/python-aiokafka
Cloning into '/var/lib/mock/f40-build-783710-133093/root/chroot_tmpdir/scmroot/python-aiokafka'...
$ git fetch origin adfaba20e36def9d73c6c6498116e1cd5e011d01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-aiokafka
 * [new ref]         adfaba20e36def9d73c6c6498116e1cd5e011d01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at adfaba2 Disable building extensions on s390x