Unable to move issue with sub-issues to another project with different workflow

We have two projects, both with Agile Simplified Workflow, but with different sets of statuses. Project A was migrated from classic workflow and we chose to keep its set of statuses (Open, Reopened, In Progress, Resolved, Closed). Project B has statuses To Do, In Progress and Done.

When I try to migrate a story with two sub-tasks (one Resolved, the other Open) from project A to project B, it fails with a "WORKFLOW ASSOCIATION ERROR" with message "Unable to determine the target status for issue", although the new status for all the sub-tasks was supposedly set in step 2 of the move wizard.

If I delete one of the sub-tasks, the move succeeds.

Steps to reproduce:

1. Create a story in the project A with status Open.
2. Create a sub-task AA for the story and change its status to Resolved.
3. Create another sub-task AB for the story. Leave its status as Open.
4. Try to move the story to project B.

Expected result:

Story and sub-tasks moved to project B with statuses changed according to what was selected in step 2: Move Issue: Select Status of the Move "wizard".

Actual result:

Error screen "WORKFLOW ASSOCIATION ERROR" with message "Unable to determine the target status for issue AA".