What means page 23 of 2P rulebook :
"A unit may ignore ennemy zones of control when advancing one hex ".
Is this applies when unit already in ennemy ZOC?
Diagram on page 18 say no...
When advancing one hex, a unit ignores enemy ZOC.
So it is irrelevant whether the unit is in an enemy ZOC, or leaving an enemy ZOC, or entering an enemy ZOC. Ignore the enemy ZOCs when advancing one hex!