I suddenly am unable to edit "Related to" field within Tasks. I added the wrong person and now I can't remove them. This means I have to delete the task and start over? Inconvenient.

I suddenly am unable to edit "Related to" field within Tasks. I added the wrong person and now I can't remove them. This means I have to delete the task and start over? Inconvenient.
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.