Changes to Discard uncommitted (staged) changes

added the non-success response with the status 423

added the media type application/json for the response with the status 401

added the optional property details to the response with the 500 status

the response property count became required for the status 200

the response property items became required for the status 200

the response property message became required for the status 500

added the required property status to the response with the 500 status

the items/items response's property type changed from object to boolean for status 200

deleted the query request parameter groupId

the items/items response's property type changed from string to object for status 200

deleted the query request parameter group

added the new optional query request parameter groupId

endpoint added