code: private boolean restartStory(Throwable cause) {
  		while (cause != null) {
  			if (cause instanceof RestartingStoryFailure) {
  				return true;
  			}
  			cause = cause.getCause();
  		}
  		return false;
  	}
docs: Determines if the cause of a story failure is {@link RestartingStoryFailure}
  @param cause the {@link Throwable} containing the {@link RestartingStoryFailure} in its stack trace
  @return true if found, false otherwise