$ git clone -n https://src.fedoraproject.org/rpms/python-ccdproc.git /var/lib/mock/f42-build-side-1-3566330-46733/root/chroot_tmpdir/scmroot/python-ccdproc
Cloning into '/var/lib/mock/f42-build-side-1-3566330-46733/root/chroot_tmpdir/scmroot/python-ccdproc'...
$ git fetch origin e8e3edd467913f0097ac37c62e9883446212334f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ccdproc
 * [new ref]         e8e3edd467913f0097ac37c62e9883446212334f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8e3edd Update to v2.4.3