Recover from setting fix version failure in merge script

Enter comma-separated fix version(s) [3.0.0]: 3.0,0
Restoring head pointer to master
git checkout master
Already on 'master'
git branch
Traceback (most recent call last):
  File "./dev/merge_spark_pr_jira.py", line 537, in <module>
    main()
  File "./dev/merge_spark_pr_jira.py", line 523, in main
    resolve_jira_issues(title, merged_refs, jira_comment)
  File "./dev/merge_spark_pr_jira.py", line 359, in resolve_jira_issues
    resolve_jira_issue(merge_branches, comment, jira_id)
  File "./dev/merge_spark_pr_jira.py", line 302, in resolve_jira_issue
    jira_fix_versions = map(lambda v: get_version_json(v), fix_versions)
  File "./dev/merge_spark_pr_jira.py", line 302, in <lambda>
    jira_fix_versions = map(lambda v: get_version_json(v), fix_versions)
  File "./dev/merge_spark_pr_jira.py", line 300, in get_version_json
    return filter(lambda v: v.name == version_str, versions)[0].raw
IndexError: list index out of range