$ git clone -n https://src.fedoraproject.org/rpms/cfitsio.git /var/lib/mock/f40-build-2208936-52148/root/chroot_tmpdir/scmroot/cfitsio
Cloning into '/var/lib/mock/f40-build-2208936-52148/root/chroot_tmpdir/scmroot/cfitsio'...
$ git fetch origin 9fddeb0b9f61265af655c29d649292efa89c61ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cfitsio
 * [new ref]         9fddeb0b9f61265af655c29d649292efa89c61ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fddeb0 New upstream version 4.3.1