another immortality fix

src/npc/children/ChildState.js

@@ -1887,13 +1887,17 @@ App.Facilities.Nursery.ChildState = class ChildState {
 		/**  */
 		this.geneMods = {
 			/** Does slave have induced NCS?
-			 *
+			 * @type {FC.Bool}
 			 * 0: no; 1: yes */
 			NCS: 0,
 			/** Has the slave undergone the elasticity (plasticity) treatment?
-			 *
+			 * @type {FC.Bool}
+			 * 0: no; 1: yes */
+			rapidCellGrowth: 0,
+			/** Is the slave immortal?
+			 * @type {FC.Bool}
 			 * 0: no; 1: yes */
-			rapidCellGrowth: 0
+			immortality: 0
 		};
 		/* eslint-disable camelcase*/
 		this.NCSyouthening = 0;