Media entity name optional

Problem/Motivation

I have added a Media reference in a content type and set it as optional. When creating new content, the Media field name is required and cannot save without setting it.

Steps to reproduce

• Create a new media type 'my_media'
• Add a field in your 'my_content_type' content type referencing 'my_media' type
• Set the field as optional
• Add content of type ''my_content_type'
• Set the content type title and leave all the 'my_media' fields unset
• Save

Proposed resolution

When adding a reference to Media as optional, 'Name' should be optional unless there is any other field fulfilled. So, the media is not created unless some field is informed.