message: Fix regression, ensure NamespaceDropdown refreshes accessible namespaces.
diff: @@ -140,6 +140,9 @@ export class NamespaceDropdown extends React.PureComponent<NamespaceDropdownProp
  }
  private onToggle = isOpen => {
  + if (isOpen) {
  + this.props.refresh();
  + }
  this.setState({
  isOpen
  });
  