Importing an XML Export does not create inline tasks and comments correctly

Steps to Reproduce

1. Create a new Space
2. Export the Space as XML
3. Delete the Space you just created
4. Import the Space Export
5. On a page, create the Task Report Macro, and point it at the imported space.

Expected Result

The Task Report Macro should show the tasks that are incomplete, or complete (depending on the settings). Using this example, the report should show 4 incomplete tasks (from the default home page)

Actual Result

The Task Report Macro doesn't show the tasks that are incomplete. Marking a task as complete and then incomplete doesn't show the task either.

The task does not appear in the database.

Workaround (not applicable to Confluence Cloud)

1. Perform a full backup of the Confluence Database
2. Shutdown Confluence
3. Execute the following SQL Queries:

   delete from "AO_BAF3AA_AOINLINE_TASK";
   delete from bandana where bandanakey = 'com.atlassian.confluence.plugins.confluence-inline-tasks:build';
   

4. Start Confluence

Confluence will re-migrate any inline tasks to the new inline task format, which will correctly re-add the tasks not handled when importing.

Notes

It is possible to tweak the migration task thread number to speed up the process. To do so, add the following system property to the instance before starting the process:

CATALINA_OPTS="-Dtasklist.storagetoaoupgradetask.numthreads=18 ${CATALINA_OPTS}"

To define the ideal number of threads for the process, we can use the following formula:

ideal_thread_number = availableProcessors() * 2 + 2;