$ git clone -n https://src.fedoraproject.org/rpms/python-astor.git /var/lib/mock/f41-build-1274676-23141/root/chroot_tmpdir/scmroot/python-astor
Cloning into '/var/lib/mock/f41-build-1274676-23141/root/chroot_tmpdir/scmroot/python-astor'...
$ git fetch origin d218c7417caccaa94f4b3b37e795441a3de737bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-astor
 * [new ref]         d218c7417caccaa94f4b3b37e795441a3de737bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d218c74 Drop dependency on astunparse