message: fix(server): unable to install contribution
  fixes
diff: @@ -194,7 +194,6 @@ export class ContribInstallController extends EventEmitter {
  private updateInstallState(state: INSTALLATION_STATE) {
  const prevState = this._installState;
  - this.updateInstallState(state);
  this.emit(InstallEvents.StateChange, { state: this._installState, prevState });
  }
  