$ git clone -n https://src.fedoraproject.org/rpms/python-fastavro.git /var/lib/mock/f42-build-side-1-3585975-46912/root/chroot_tmpdir/scmroot/python-fastavro
Cloning into '/var/lib/mock/f42-build-side-1-3585975-46912/root/chroot_tmpdir/scmroot/python-fastavro'...
$ git fetch origin 4993dff95abfac9c6ce2459512cb32742d3efeb0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-fastavro
 * [new ref]         4993dff95abfac9c6ce2459512cb32742d3efeb0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4993dff Update to 1.11.1 upstream release