do not save draft is institution is blank
Currently, saving a draft entry with a blank institution will result in a HTTP 400 error being displayed to the user. Instead, catch the source of this error at saveDraft() time and warn the user instead.
Currently, saving a draft entry with a blank institution will result in a HTTP 400 error being displayed to the user. Instead, catch the source of this error at saveDraft() time and warn the user instead.