fix generated item's script

src/items/ItemDef.cpp

@@ -2,9 +2,10 @@
 
 #include "util/stringutil.hpp"
 
-ItemDef::ItemDef(const std::string& name) : name(name) {
-    caption = util::id_to_caption(name);
-    description = "";
+ItemDef::ItemDef(const std::string& name)
+    : name(name), 
+      caption(util::id_to_caption(name)),
+      scriptName(name.substr(name.find(':') + 1)) {
 }
 void ItemDef::cloneTo(ItemDef& dst) {
     dst.caption = caption;

src/items/ItemDef.hpp

@@ -37,7 +37,7 @@ struct ItemDef {
     std::string caption;
 
     /// @brief Item description will shown in inventory
-    std::string description;
+    std::string description = "";
 
     dv::value properties = nullptr;
 
@@ -60,7 +60,7 @@ struct ItemDef {
     std::string icon = "blocks:notfound";
 
     std::string placingBlock = "core:air";
-    std::string scriptName = name.substr(name.find(':') + 1);
+    std::string scriptName;
 
     std::string modelName = name + ".model";