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Error: ngModel:datefmt
Model is not a date object

Expected `{0}` to be a date

Description

All date-related inputs like <input type="date"> require the model to be a Date object. If the model is something else, this error will be thrown. Angular does not set validation errors on the <input> in this case as those errors are shown to the user, but the erroneous state was caused by incorrect application logic and not by the user.