message: Escape dash in regex
diff: @@ -55,7 +55,7 @@ export default React.createClass({
  _checkGroupId: function(e) {
  let error = null;
  - if (!/^[a-z0-9=_-\.\/]*$/.test(this.state.groupId)) {
  + if (!/^[a-z0-9=_\-\.\/]*$/.test(this.state.groupId)) {
  error = _t("Community IDs may only contain characters a-z, 0-9, or '=_-./'");
  }
  this.setState({
  