WBS Rollup question

 Hi,

We are on 11.5.9

We've a peculiar scenario where top task status flips from certain status to completed.

Here is the scenario:

1. We've defined a user defined status called 'Final Status' mapped to system status Completed

2. There is also seeded Completed status mapped to system status Completed

3. On a project, we've a sub task and top task

4. Sub task status is Completed

5. Top task status rolls up to Completed

6. We manually change the top task status to Final Status

7. At this time, someone goes in and adds comment to sub task

8. Event in step7 is flipping top task status from Final Status to Completed