code: function(raw_properties) {
  
  		var result;
  
  		if (Lava.schema.DEBUG && !raw_properties.id) Lava.t('safeLoadRecord: import data must have an id');
  
  		if (raw_properties.id in this._records_by_id) {
  
  			result = this._records_by_id[raw_properties.id];
  
  		} else {
  
  			result = this.loadRecord(raw_properties);
  
  		}
  
  		return result;
  
  	}
docs: Load record only if it has not been already loaded. `raw_properties` must have an ID
  @param {Object} raw_properties Serialized record fields from server
  @returns {Lava.data.Record} Newly loaded record instance, or the old one