RFR: 1239: The backport command bot replies multiple `@username` unexpectedly

[Erik Joelsson]

On Wed, 10 Nov 2021 05:55:08 GMT, Guoxiong Li <gli at openjdk.org> wrote:

> Hi all,
> 
> After [SKARA-1201](https://bugs.openjdk.java.net/browse/SKARA-1201), the backport command bot will reply multiple `@username` unexpectedly when we use command `/backport branch-name`.
> 
> Please see [this link](https://github.com/openjdk/jdk/commit/2b02b6f513b062261195ca1edd059d16abb7bec6) for the detailed messages. The bot replied two `@lgxbslgx` unexpectedly.
> 
> This patch fixes the issue and adds the corresponding test cases.
> 
> Thanks for taking the time to review.
> 
> Best Regards,
> -- Guoxiong

Thank you for the contribution!

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PR: https://git.openjdk.java.net/skara/pull/1238