Fix to rune_group parsing

src/engine/objects/ItemTemplate.java

@@ -477,7 +477,7 @@ public class ItemTemplate {
 
                 rune_group_type = ((Long) rune_group.get("group_type")).intValue();
                 rune_group_is_faction = ((Boolean) rune_group.get("group_is_faction"));
-                rune_group_is_guild = ((Boolean) jsonObject.get("rune_group_is_guild"));
+                rune_group_is_guild = ((Boolean) rune_group.get("group_is_guild"));
                 rune_dsc = (String) jsonObject.get("rune_dsc");
                 rune_fx_txt = (String) jsonObject.get("rune_fx_txt");
                 rune_group_tactics = ((Long) jsonObject.get("rune_group_tactics")).intValue();