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ac34d9fd29
Ideally wish to delay construction of the finite-area mesh until updateCoeffs(), when it is actually needed. This helps avoid difficult to trace errors and avoids inadvertent parallel communication during construction from a dictionary. However, lazy evaluation fails at the later stage while attempting to load the corresponding initial fields, since the timeIndex has already advanced. Use the newly introduced regionModels::allowFaModels() switch to locally enable or disable lazy evaluation as needed. This allows selective disabling (eg, in post-processing utilities) where loading the volume field should not activate the associated regionFaModel and loading a finite-area mesh too (which may not exist or be defined at that point).