In the scene where everyone from the jail is on the cart, it shows the mother rabbit holding her baby. The next time you see her, she is holding a bag of money. Where did her baby go? The time that she says that they should wait for her baby, she isn't holding anything.
I actually just watched this, and the baby she has in her lap has on the blue shirt. The next time you see her, when she is holding the bag of money, the rabbit with the blue shirt is standing behind her. He could have simply moved and she could have picked up a bag of money to hold, to keep it from falling off the cart. And when she says to stop, it does not show her lap. The bag of money could have been below the camera's shot.