Restrict uploads

[Arkshine]

Acredito que você precise usar o método modifyClass para sobrescrever este descritor computado corretamente.

import discourseComputed from "discourse-common/utils/decorators";

api.modifyClass("service:composer", 
  (SuperClass) => class extends SuperClass {
    @discourseComputed
    allowUpload() {
      return super.allowUpload && canUpload;
    }
  }
);

EDIT:

Fiz um PR:

DEV: Modernize `modifyClass` calls, use tranformer, and add tests