message: Fix a bug in the extension loader which prevented multiple session backends in one extension.
diff: @@ -173,9 +173,9 @@ class BackendImpl implements Backend {
  sessionBackendMetadata: backendMeta,
  sessionBackend: backend
  });
  - }
  return;
  }
  + }
  this._log.warn(`Unable to register session backend '${name}' for extension ` +
  `'${this.__extensionMetadata.name}' because the session backend contribution data ` +
  