v2.1.3: fixed ratmog boosting health again during ascent challenge

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/hero/abilities/Ratmogrify.java

@@ -184,6 +184,9 @@ public class Ratmogrify extends ArmorAbility {
 
 		{
 			spriteClass = RatSprite.class;
+
+			//always false, as we derive stats from what we are transmogging from (which was already added)
+			firstAdded = false;
 		}
 
 		private Mob original;