I don't believe I have heard this one before. I'm sure you have tried, but what about using the key fob? Also, be sure that the button on the lower left side of the dash that deactivates the power lift has not been engaged.
Didnt know thats possible either. My old jeep used to do this and what I did was unlock the door and press the door handle while having someone pull on the latch mechanism with a screw driver or pliers as if it is releasing from the trunk latch hook. Should be pretty easy to flip the latch if that is the problem.