message: Fix a tiny but critical bug which broke the extension loading.
diff: @@ -106,7 +106,7 @@ this._log.debug(`getExtensionContextByName() ext.metadata.name: ${ext.metadata.n
  this._proxyFactory, this._commonExtensionWindowState);
  if (metadata.main != null) {
  module = this._loadExtensionModule(metadata);
  - if (module != null) {
  + if (module == null) {
  return;
  }
  