Group Membership State - None - Causes Crashes

Having members of a group with membership state set to "- None -" breaks certain functionality. I've included a screenshot of one such case when hitting the endpoint /group/%group/content (the Related entities tab "view" included with the group module).

I'm still trying to discern the reasoning and use cases for having such a membership state, but so far it seems to me that it implies the same thing as having no membership in a group, AND leads to undefined behavior, probably elsewhere on the site than the case mentioned above.

Technically, I'm noticing that a user of a group with a membership state of "- None -" has a record in the group_content_field_data table (of the group content type "membership" type) AND has no correlating (by entity_id foreign key relation) record in the group_content__group_membership_state table.

So, is this really the intended functionality?

At this point I believe it may be worth considering the purpose of this membership state and whether removing it (the "- None -" state) will make for a clearer user experience and eliminate undefined behavior that programmers will have to accommodate in development.

Steps to Reproduce:

• Create a Group Type
• Create a Group
• Add a User as a member of the Group
• Set the User's Membership State to "- None -" and Save
• Navigate to http://%yoursite/group/%group/content