Fleeing from assault and entrenchments, 4th Ed.

[Blackcloud6]

12.13 says: If demoralized units start their activation in an assault hex, they must try to recover morale. If they fail they must exit the hex (moving only one hex rather than their maximum movement rate), and may suffer a "free shot" from the enemy units there if no friendly units remain in the hex when they leave (12.12). 

14.35 reiterates this: Demoralized units in an assault hex that fail a morale check must exit the hex, and may move only one hex when doing so (12.13).
yet
14.31 says: Exception: A demoralized leader or unit in a hex containing an entrenchment is not required to flee, but may do so if desired. See also 14.35.
So, what if the demoralized unit is in an entrenchment in an assault hex and starts its activation and fails to recover, does it flee or can it stay?

I'm thinking it must flee because 14.31 refers to 14.35 at the end of the sentence.

What say you?


Either way, this should go in the annotated rules