Adding same tag with different case allowed

[yucongkoo]

The current behaviour of tags is as follow:

• Adding the same tag(and same case) will not add a duplicate tag to the client

• Filtering of tags is non case-sensitive (i.e. Friends tag will match friends tag)

Hence, I believe that your intention is that tags should not have duplicates, and they are non case-sensitive, which aligns with the normal view on tags.

However, users are allowed to add two tags as follows:

addTag 1 t/friend t/Friend

Where there will now be duplicate tags in the same client.

[soc-se-bot]

Team's Response

No details provided by team.

The 'Original' Bug

[The team marked this bug as a duplicate of the following bug]

No case check for tags (It is Adding a friend tag in small letters and adding a friend tag like this (Friend))

• It is only checking duplicates in lower case when given this command addTag 1 t/friend it adds a friend tag
• However, when given addTag 1 t/Friend it adds a tag named Friend again.

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_{[original: nus-cs2103-AY2324S1/pe-interim#6001] [original labels: type.FeatureFlaw severity.High]}

Their Response to the 'Original' Bug

[This is the team's response to the above 'original' bug]

There are certain cases where the same characters with different capitalisation have different use cases

Items for the Tester to Verify

:question: Issue duplicate status

Team chose to mark this issue as a duplicate of another issue (as explained in the Team's response above)

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

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## :question: Issue type Team chose [`type.FeatureFlaw`] Originally [`type.FunctionalityBug`] - [ ] I disagree **Reason for disagreement:** [replace this with your explanation]

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