Missing duplicate checking for email addresses

[yytan25]

Since email addresses are unique, there should not be cases when two people in the address book have the same email address. I was able to edit a person's email address to be the same as another person in the list, as shown:

This could cause problems when trying to view details on a particular person based on his/her email address.

[nus-se-bot]

Team's Response

There are cases where multiple people can share the same email address.

For example, multiple specialists working under the same organisation can share an email address provided by the organisation. A child may not have an email address and can be sharing one with his or her parent.

Items for the Tester to Verify

:question: Issue response

Team chose [response.Rejected]

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

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