Slight optimization and defensive programming.

src/ScriptResolving/AngelScript/AngelScriptScript.cpp

@@ -19,7 +19,10 @@ AngelScriptScript::AngelScriptScript(const ArbUt::OptionalBorrowedPtr<void>& own
                                      AngelScriptResolver* resolver, AngelScriptTypeInfo* type, asIScriptObject* obj,
                                      ContextPool* ctxPool)
     : PkmnLib::Battling::PkmnScript(owner), _resolver(resolver), _type(type), _ctxPool(ctxPool), _obj(obj) {
-    if (_type->GetGetOwner().Exists) {
+    if (_type->GetGetOwner().Exists && owner.HasValue()) {
+        if (ownerType == nullptr){
+            THROW("Script was created with owner value, but with unknown owner type.")
+        }
         CScriptHandle* handle = nullptr;
         AngelScriptUtils::AngelscriptFunctionCall(
             _type->GetGetOwner().Function, _ctxPool, _obj, _resolver, GetName(), [&](asIScriptContext*) {},