The email fields allows duplicate values cause unexpected behaviors when emailall

[ngquyduc]

Because the email fields allows duplicate values like this

When emailall friends, which expect to write email to 3 friends because there are 3 friends in the group

However, there are only two emails as two are duplicate.

[nus-pe-script]

Team's Response

Thanks for raising this. Indeed it didn't occur to us. However, after discussion, we feel that since the emailall function still works and is unlikely to affect normal operation of the product, the severity of this issue should be Low instead!

Items for the Tester to Verify

:question: Issue severity

Team chose [severity.Low] Originally [severity.Medium]

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

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