This is alternative to "Issue id pattern". Unlike it, This pattern is regular expressions, which is used to match issue IDs in SCM changeset comments.

If empty, "Issue id pattern" is used.

For example, if you enter "(?i)(?:mantis|issue|case|bug)\s*[:#.]?\s*(\d+)", you can use following changeset comments.

Note:

See Summary of regular-expression constructs for details.