message: Make sure to grab the InlineSpinner object
diff: @@ -1077,6 +1077,7 @@ export default React.createClass({
  },
  _getJoinableNode: function() {
  + const InlineSpinner = sdk.getComponent('elements.InlineSpinner');
  return this.state.editing ? <div>
  <h3>
  { _t('Who can join this community?') }
  