$ git clone -n https://src.fedoraproject.org/rpms/gretl.git /var/lib/mock/f39-build-1563108-37473/root/chroot_tmpdir/scmroot/gretl
Cloning into '/var/lib/mock/f39-build-1563108-37473/root/chroot_tmpdir/scmroot/gretl'...
$ git fetch origin 723376ee34643f29a13b7803064c55460a7b105e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gretl
 * [new ref]         723376ee34643f29a13b7803064c55460a7b105e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 723376e Update to 2023b