Change branch associated with a task?

I've noticed that when I create a branch to be associated with a task, there doesn't seem to be a way to change which branch is associated with the task at a later point. To reproduce:

1. Create a new task and create a new branch for it
2. Switch to another task
3. Delete the branch you created for the new task
4. Switch back to the original task you created
5. RubyMine checks out the branch that you had previously deleted

Is there a way to point a task at a new branch after the task has been opened in RubyMine? Thanks!