Comment (by Ian Hinder):

Roland, why should the data be replaced? Has it changed? I don't see a reason to replace the existing data if it hasn't changed. It is likely slightly different due to being run with a different compiler, machine, etc, but that is no reason to update the data.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2174/test-multi-patch-scalar-wave-equation