Merge tool failing to update JIRA

[Andy Grove]

I've hit this error this morning on merging some PRs.

Would you like to update the associated JIRA? (y/n): y
Traceback (most recent call last):
  File "./dev/merge_arrow_pr.py", line 597, in <module>
    cli()
  File "./dev/merge_arrow_pr.py", line 591, in cli
    fix_versions_json = prompt_for_fix_version(cmd, pr.jira_issue)
  File "./dev/merge_arrow_pr.py", line 473, in prompt_for_fix_version
    default_fix_versions) = jira_issue.get_candidate_fix_versions()
  File "./dev/merge_arrow_pr.py", line 168, in get_candidate_fix_versions
    (major, minor, patch) = v.name.split(".")
ValueError: need more than 2 values to unpack

Does anyone know what would cause this before I start trying to debug it?

I'm wondering if it is a data issue in JIRA?

Thanks,

Andy.