Comment (by Roland Haas):

The default value for a parameter is out of range. Just why default values (in param.ccl) are not checked against the allowed range I do not quite know. It is possible that this was too complicated to do at CST time (b/c parameter ranges can be extended).

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2593/since-this-was-the-default-value-setting