Patients can have duplicate emails

[kennethk-1201]

I added two patients with the same email.

This might not be applicable as an email should be tied to a single individual.

[nus-se-script]

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Team's Response

We allow for duplicate email since some patient might not have an email address and might share email address with their parents/children.

Items for the Tester to Verify

:question: Issue response

Team chose [response.Rejected]

• [ ] I disagree

Reason for disagreement: [replace this with your reason]

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