message: don't pass back {} when we have no `org.matrix.room.color_scheme`
diff: @@ -24,7 +24,7 @@ export default class RoomAccountSettingsHandler extends SettingsHandler {
  getValue(settingName, roomId) {
  // Special case URL previews
  if (settingName === "urlPreviewsEnabled") {
  - const content = this._getSettings(roomId, "org.matrix.room.preview_urls");
  + const content = this._getSettings(roomId, "org.matrix.room.preview_urls") || {};
  // Check to make sure that we actually got a boolean
  if (typeof(content['disable']) !== "boolean") return null;
  @@ -38,13 +38,14 @@ export default class RoomAccountSettingsHandler extends SettingsHandler {
  return this._getSettings(roomId, "org.matrix.room.color_scheme");
  }
  - return this._getSettings(roomId)[settingName];
  + const settings = this._getSettings(roomId) || {};
  + return settings[settingName];
  }
  setValue(settingName, roomId, newValue) {
  // Special case URL previews
  if (settingName === "urlPreviewsEnabled") {
  - const content = this._getSettings(roomId, "org.matrix.room.preview_urls");
  + const content = this._getSettings(roomId, "org.matrix.room.preview_urls") || {};
  content['disable'] = !newValue;
  return MatrixClientPeg.get().setRoomAccountData(roomId, "org.matrix.room.preview_urls", content);
  }
  @@ -55,7 +56,7 @@ export default class RoomAccountSettingsHandler extends SettingsHandler {
  return MatrixClientPeg.get().setRoomAccountData(roomId, "org.matrix.room.color_scheme", newValue);
  }
  - const content = this._getSettings(roomId);
  + const content = this._getSettings(roomId) || {};
  content[settingName] = newValue;
  return MatrixClientPeg.get().setRoomAccountData(roomId, "im.vector.web.settings", content);
  }
  @@ -74,10 +75,10 @@ export default class RoomAccountSettingsHandler extends SettingsHandler {
  _getSettings(roomId, eventType = "im.vector.settings") {
  const room = MatrixClientPeg.get().getRoom(roomId);
  - if (!room) return {};
  + if (!room) return null;
  const event = room.getAccountData(eventType);
  - if (!event || !event.getContent()) return {};
  + if (!event || !event.getContent()) return null;
  return event.getContent();
  }
  }
  