RFR: 939: Improve robustness and error reporting on invalid fixVersion

[Erik Helin]

On Tue, 30 Mar 2021 08:43:36 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

> If a fixVersion isn't found, ensure that we refresh the cache and log a proper error message if it still isn't found.

Looks good!

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Marked as reviewed by ehelin (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/1099