The latest custom JIRA issue key regex is not used to reindex the old commits

Steps to reproduce

1. Do not modify Dintegration.jira.key.pattern (previosuly Dstash.jira.key.pattern - see STASH-2784)
2. Integrate Bitbucket Server with JIRA
3. Perform a commit to Bitbucket Server with the comment 'TST3-123' (The issue column does not have JIRA issue link)
4. Stop Bitbucket Server
5. Modify JIRA custom issue key regex by editing the setenv script:

   JVM_SUPPORT_RECOMMENDED_ARGS="-Dintegration.jira.key.pattern=\"b([a-zA-Z][a-zA-Z0-9]+-\d+)\""
   

6. Start Bitbucket Server
7. Perform another commit to Bitbucket Server with the comment 'TST3-123'

Expected Results

Previously pushed commits have the issue link.

Actual Results

Only the latest commit has the issue link.