JIRA BugzillaImporter needs to be made compatible with Bugzilla 2.22.2

I am trying to use Bugzilla importer provided by Jira to import all the bugs in Bugzilla 2.22 (and 2.22.2) into Jira 3.7.4. However, I have found out that the attachments will not be migrated into Jira and I have gotten the following errors:

[21:09:36] Importing Issue: "test with attachment"
[21:09:37] Error on importing attachments for bug 8. Error:Column 'thedata' not found.

After searching a little bit more, I have found that the database schema of Bugzilla has been changed since 2.21.1. In Bugzilla 2.21.1, a new table named attach_data was introduced to handle big attachment. However, the Bugzilla importer for Jira 3.7.4 (even 3.8) is still using the schema for Bugzilla 1.8.

Here comes my question:

Is there anybody who has a fix for this? If so, could you please share your fix(es) with me?