Does anyone know a way of altering/disabling the automatic 'Save Draft' feature in Outlook WebApp?

Currently, when creating a new email, it is automatically saved to the Drafts folder every 60 seconds. In itself, this is a useful feature. However, if you are in the middle of entering an email address in the To: Cc: or Bcc fields, it adds a semi-colon rendering the email address incorrect.

I posted a similar question earlier in the week but got no replies. I have since found out that it is the autosave feature that is causing the problem.