When moving AI created through Docs to another List in Tasks, then AI items in Docs loses owner#1417

STR:

1. Open a new doc in Google Docs. Create an action item: type “[ ]” and text
2. Assign the AI in Docs to yourself
3. Go to Google Tasks, observe the new Task created in the default List
4. Move the Task in another list of yours on the same Board
5. Go to the original Google Docs document
6. Observe that your original action item has lost owner. This is unexpected behabiour
7. Assign the action item to yourself again
8. Go to Google Tasks
9. Observe that your action item Task disappeared from the new List and re-appeared in the default List. This is unexpected behaviour