Say you have task 1 blocking task 2
Vit shows among other:

If you now mark 1 as done, you get

The completed task 1 shouldn't appear in the reports (list, next, etc) as dependency of task 2, to be consistent with TaskWarrior: finished blocking tasks aren't really blocking anymore. It doesn't appear in task 2 info anymore anyway.

Note uuidOld1 appears in task 2 export { "id":2,"depends":"uuidOld1",... } in all cases, whether task 1 is pending or not, so filtering should be done on displayed dependencies to only include those with pending status, and not completed/deleted/...