Extra characters after add command not accounted for in error message

[xxzz-tt]

Adding extra characters after a correct add command should perhaps throw back a more specific error instead of having the same error message for inaccurate tags??

[nus-se-bot]

Team's Response

The system interpreted as the user trying to enter a tag with name containing a space. Hence, throw the error that says tag name should be alphanumeric (which implies that it should not include a space).

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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