$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Ipopt.git /var/lib/mock/f40-build-788606-135267/root/chroot_tmpdir/scmroot/coin-or-Ipopt
Cloning into '/var/lib/mock/f40-build-788606-135267/root/chroot_tmpdir/scmroot/coin-or-Ipopt'...
$ git fetch origin d530ad8354c54169adf8bbb086aa1c270481257f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-Ipopt
 * [new ref]         d530ad8354c54169adf8bbb086aa1c270481257f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d530ad8 Release 3.14.14