[Exemption d'alertes] Correction du pavillon envoyé (#2568)

## Linked issues

- Resolve #1370 
- Resolve #2556

----

- [ ] Tests E2E (Cypress)

frontend/src/domain/use_cases/layer/regulation/createOrUpdateRegulation.ts

@@ -22,6 +22,19 @@ export const createOrUpdateRegulation = (processingRegulation, id, previousId) =
      * /!\ This constraint is only applied to the local (CROSS) regulations table.
      */
     await dispatch(resetPreviousRegulation(previousId, id))
+
+    /**
+     * We must wait for the reset to be done.
+     * TODO Add the two UPDATE into the same transaction to remove this `setTimeout`
+     */
+    setTimeout(() => {
+      /**
+       * Then, we update the new regulation with the values of the previous one
+       */
+      dispatch(updateRegulation(feature, REGULATION_ACTION_TYPE.UPDATE))
+    }, 1000)
+
+    return
   }
 
   /**

frontend/src/features/SideWindow/Alert/SilencedAlerts/fields/VesselField.tsx

@@ -59,7 +59,7 @@ export function VesselField() {
     setValues({
       ...values,
       externalReferenceNumber: nextVessel.externalReferenceNumber || null,
-      flagState: nextVessel.flagState,
+      flagState: nextVessel.flagState?.toUpperCase(),
       internalReferenceNumber: nextVessel.internalReferenceNumber || null,
       ircs: nextVessel.ircs || null,
       vesselId: nextVessel.vesselId || null,