RFR: 2111: Normalize usernames before comparing

[Zhao Song]

On Tue, 5 Dec 2023 17:22:56 GMT, Zhao Song <zsong at openjdk.org> wrote:

> In https://github.com/openjdk/jdk/pull/16788#issuecomment-1827984539, although the user's full name and the head commit author's name seems exactly same in the GitHub. The bot was thinking they are different, Erik pointed out the root cause "The problem was that a unicode character was encoded differently, one as a composition and one as a single character. "
> 
> To avoid this kind of problems in the future, we should normalize the strings before comparison to ensure unicode characters are encoded in the same way.

Thanks!

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PR Comment: https://git.openjdk.org/skara/pull/1591#issuecomment-1841855696