I was playing a match today in CCL where by team "Bear Down II" faced a goblin team "Fire and Fury".
He had a goblin who was moved to a position that would take two GFIs.
The first GFI failed, and a reroll happened which passed. Then the second GFI occurred and he used his team reroll to reroll that (which succeeded). I can't think of any situation where this should occur. There were no other skills involved (such as Pro).
Here's a screenshot.