What is the purpose of Location Override address type in the Locations page?

Summary:

We have a business case to capture 3 addresses for a location. We have already consumed Main and Mailing address types. I see a 3rd type called Location override but its not helping. What is the purpose of Location Override address type in the Locations page?

Content (please ensure you mask any confidential information):

When we try to add a location with this address type and Submit it, we get an error:

The address doesn't exist for this address type. (PER-1530567) Details: Enter an existing address for this address type.

Version (include the version you are using, if applicable):

26C