code: protected void setChangedInLastRequest(final boolean changed) {
  		if (isChangedInLastRequest() != changed) {
  			InputModel model = getOrCreateComponentModel();
  			model.changedInLastRequest = changed;
  		}
  	}
docs: Set the changed flag to indicate if the component changed in the last request.
  
  @param changed true if the value changed in the request