How does Sara "Dippity"s critical work with Commabackk?

When Sara "Dippity" is in critical mode and has additional

armor on the final limb when it is blown off, the Extra Life ability is triggered which means instead of ending the game the player will only discard all of the armor upgrades back to base armor. If the action card Commabackk is played it would not draw any cards because Sara "Dippity" does not have less limbs than earlier in the turn.