Issues have been found related to the the new optional include parameters as announced in CHANGE-1488.

When using the API endpoint {{/wiki/api/v2/custom-content/{id} }}some parameters seems to not work.

When using this combination: body-format=raw&version=3&include-labels=true&include-properties=true&include-operations=true, tests are indicating that the version parameter is causing issues and leading to a error screen "We'll be back in a flash".