Steps to reproduce:

1. Create a plan from a board
2. Add a sprint to the board
3. Add a new team to the plan, and have that team associated with the same board
4. Create a story with a subtask. Give estimates to both
5. Assign the story to the new team, and the new sprint
6. Calculate the plan

Expected outcome:

The story should be scheduled

Actual outcome:

The story cannot be scheduled and shows a scheduling error:

'This issue can't be scheduled because this issue and its sub-tasks are assigned to different teams'.