added some tag definitions for if_first
added some tag definitions for if_first

radiant/radiant-clipped-extension,radiant/radiant-clipped-extension,GarPit/radiant-clipped-extension,radiant/radiant-clipped-extension,radiant/radiant-clipped-extension,kbingman/paperclipped,saturnflyer/paperclipped,GarPit/radiant-clipped-extension,kbingman/paperclipped