Infinite Synergy Skill Combo

So I recreated my original party for Rebirth of the boys - Cloud, Barrett, and Red XIII. I have discovered that if I bounce back and forth between the first hit of their offensive synergy abilities, the combo doesn’t ever end and have the brief cool down before I have to activate it. It’s not the most damaging thing, but any regular enemies that suffer knockback on regular hit kinda just… juggle? Has anyone else discovered this? Is it intentional?