Shorten the identifier.

This makes the API easier to use and is more consistent with other entity types.

Closes #3504484

changed target branch from 8.x-1.x to 2.x

added 2 commits

• ed5cafb5 - 1 commit from branch project:2.x
• d9eedc62 - Issue #3504484: Remove GraphQL 3 code from 2.x branch.

Compare with previous version

merged