Fixes dupe exception (#258)

- [X] Cleans up ActivatorUtil
- [X] Fixes dupe exception
- [X] Fixes a bug in BasePotion
- [X] Fixes a few possible memory leaks

Bumps release version

Projects/UOContent/Engines/Craft/DefInscription.cs

@@ -37,7 +37,7 @@ namespace Server.Engines.Craft
 
         public override int GumpTitleNumber => 1044009;
 
-        public static CraftSystem CraftSystem => m_CraftSystem ?? (m_CraftSystem = new DefInscription());
+        public static CraftSystem CraftSystem => m_CraftSystem ??= new DefInscription();
 
         public override double GetChanceAtMin(CraftItem item) => 0.0;
 
@@ -55,9 +55,9 @@ namespace Server.Engines.Craft
 
             if (typeItem != null)
             {
-                var o = ActivatorUtil.CreateInstance(typeItem);
+                var scroll = typeItem.CreateEntityInstance<SpellScroll>();
 
-                if (o is SpellScroll scroll)
+                if (scroll != null)
                 {
                     var hasSpell = Spellbook.Find(from, scroll.SpellID)?.HasSpell(scroll.SpellID) == true;
 
@@ -65,11 +65,6 @@ namespace Server.Engines.Craft
 
                     return hasSpell ? 0 : 1042404; // null : You don't have that spell!
                 }
-
-                if (o is Item item)
-                {
-                    item.Delete();
-                }
             }
 
             return 0;