RFR: 1603: Make labels handling consistent in all Issue implementations [v2]

Tue Oct 4 17:49:12 UTC 2022

On Tue, 4 Oct 2022 17:30:42 GMT, Zhao Song <duke at openjdk.org> wrote:

>> Make TestIssue and JiraIssue update the cache when updating labels.
>
> Zhao Song has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Adjusted format and updated setLabels in JiraIssue and TestIssue

This looks good. Hopefully tests are still passing.

It would be good to walk through all instances of label handling with `JiraIssue` to make sure this change in behavior won't be a problem. I don't think there will be problems, but some kind of manual inspection would be appreciated.

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Marked as reviewed by erikj (Lead).

PR: https://git.openjdk.org/skara/pull/1387