update(updates) {

    const { changedTiddlers } = updates;

    if (updates[env.path.edgeTypes] || utils.hasKeyWithPrefix(changedTiddlers, this.getRoot())) {
      this._clearCaches();

      return true;
    }

    return false;
  }
Gives the view a chance to rebuild its properties cache.

@param {Updates} updates
@return {boolean} True if changes affect parts of the view.