Hi,
Updating an authors field to empty shows "<>" instead of "this field is empty" message

Steps to reproduce

– create a Content Type with an "Authors" field type
– Create a content of previous content type, setting one author value to valid values such
>> Name: Paul
>> email: paul@test.com
– Publish the Content
– Edit the Content again
– Update the authors field (name and email) setting the values to empty
– Publish the content

When viewing the Content, the authors field is set to "<>". I was expecting the value to be "This field is empty".