58404 - add change log


58404 - add spec


58404 - add more spec to test depth 2


58404 - fix spec


58404 - fix rubocop


58404 - refactor the code by Bob's advice


58404 - revert changes of all_graphql_fields_for


58404 - change text only


58404 - fix rspec according to gitlab's standard


58404 - revert previous spec


58404 - fix rubocop