negative year could be entered for the birthday

[nus-se-bot]

-1999 could be entered as a year

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_{[original: nus-cs2103-AY2122S1/pe-interim#5566] [original labels: type.FunctionalityBug severity.High]}

[seannzx]

Team's Response

Bug accepted. Though the tester graded the severity level of high which seems too much seems since the bug does not make the product unusable for most users. Low would be apt as such a case occurs in rare situations and causes a minor inconvenience.

Duplicate status (if any):

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