message: Default values when GETing instead of when POSTing
diff: @@ -448,8 +448,16 @@ export default React.createClass({
  _initGroupStore: function(groupId) {
  this._groupStore = GroupStoreCache.getGroupStore(MatrixClientPeg.get(), groupId);
  this._groupStore.on('update', () => {
  + const summary = this._groupStore.getSummary();
  + if (summary.profile) {
  + // Default profile fields should be "" for later sending to the server (which
  + // requires that the fields are strings, not null)
  + ["avatar_url", "long_description", "name", "short_description"].forEach((k) => {
  + summary.profile[k] = summary.profile[k] || "";
  + });
  + }
  this.setState({
  - summary: this._groupStore.getSummary(),
  + summary,
  error: null,
  });
  });
  @@ -524,15 +532,8 @@ export default React.createClass({
  },
  _onSaveClick: function() {
  - const newGroupProfile = this.state.profileForm;
  - // Synapse is not expecting `null`, so map unset values to the empty string
  - Object.keys(newGroupProfile).forEach((k) => {
  - if (!newGroupProfile[k]) {
  - newGroupProfile[k] = '';
  - }
  - });
  this.setState({saving: true});
  - MatrixClientPeg.get().setGroupProfile(this.props.groupId, newGroupProfile).then((result) => {
  + MatrixClientPeg.get().setGroupProfile(this.props.groupId, this.state.profileForm).then((result) => {
  this.setState({
  saving: false,
  editing: false,
  