"Cancelling" wrathful advance causes you to be locked in the teleport endpoint while invulnerable until using a melee attack.

[Yasha-7HS]

When using the targeted version of Wrathful Advance, you can roll before completing the heavy attack which effectively cancels the attack itself. 

However, this causes you to teleport at a delayed time, which causes the Warframe to be stuck in place at the teleport endpoint while being invulnerable to all damage. This still allows your Warframe to shoot, swap weapons, use powers and transfer to operator entirely at will.  This is effectively a God Mode glitch. Pressing the melee button, using the ability again or performing a heavy attack allows the Warframe to escape this state. It can be performed an infinite number of times.