[PE-D][Tester D] Overzealous input validation for tag

[soc-se-bot]

The current input validation for the tag field in the add command is as follows:

Study group names should only contain alphanumeric characters and dashes

This is a blocking operation and might potentially be considered overzealous input validation because users might want to be able to have their own system for tagging (having spaces, punctuation etc.)

If there is a implementation constraint (e.g. too long tags causing hindrance to software), having input length validation could potentially be used instead. Alternatively, warnings can be given (instead of being blocking).

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Labels: severity.Low type.FeatureFlaw
original: juliantayyc/ped#4