Special Provisions
(1) While a National Emergency (declared for war/external aggression specifically, not armed rebellion) is in operation, Article 19's freedoms don't restrict state law-making/executive action otherwise within its competence - such a law lapses (for the incompetency) once the Emergency ends, without undoing things already done under it. (2) This only applies to a law/executive action that specifically recites it's connected to the operative Emergency Proclamation.
This automatically suspends the specific protections of Article 19 (freedom of speech, assembly, movement, profession, etc.) during a war/external-aggression National Emergency - though notably NOT during an emergency declared for "armed rebellion" (an internal threat), reflecting the 44th Amendment's deliberate narrowing of this automatic suspension to only external-threat emergencies, requiring any such law to explicitly acknowledge it's Emergency-related rather than suspending rights via unrelated laws.
This is why, if a war-based National Emergency were declared today, laws restricting freedom of movement or expression connected to the war effort could bypass the ordinary Article 19 "reasonable restriction" scrutiny - but this automatic suspension mechanism wouldn't apply if the Emergency were instead declared for "armed rebellion" (an internal security threat) rather than war or external aggression.