### Godot version

4.1.0

### System information

Windows 10, i711800H, Forward+ Vulkan

### Issue description

When using @export_group("Name") in a BaseClass, then inheriting from that BaseClass in another class and there also using @export_group("Name"), with the same group name, then running the project and re-saving the inherited class the project crashes with 
```
ERROR: FATAL: Index p_index = 3 is out of bounds (size() = 3).
   at: get (./core/templates/cowdata.h:155)
```

sometimes the editor crashes too after a while.

### Steps to reproduce

1. open reproduction project
2. Run the project.
3. Open the "super"script
4. Press CTRL + S to save it.

### Minimal reproduction project

[MRP_.zip](https://github.com/godotengine/godot/files/12137412/MRP_.zip)

void print_get_node(GetNodeNode *p_get_node);
		void print_if(IfNode *p_if, bool p_is_elif = false);
		void print_identifier(IdentifierNode *p_identifier);
		void print_lambda(LambdaNode *p_lambda);
		void print_literal(LiteralNode *p_literal);
		void print_match(MatchNode *p_match);
		void print_match_branch(MatchBranchNode *p_match_branch);
		void print_match_pattern(PatternNode *p_match_pattern);
		void print_parameter(ParameterNode *p_parameter);
		void print_preload(PreloadNode *p_preload);
		void print_return(ReturnNode *p_return);
		void print_self(SelfNode *p_self);
		void print_signal(SignalNode *p_signal);
		void print_statement(Node *p_statement);
		void print_subscript(SubscriptNode *p_subscript);
		void print_suite(SuiteNode *p_suite);
		void print_ternary_op(TernaryOpNode *p_ternary_op);
		void print_type(TypeNode *p_type);
		void print_type_test(TypeTestNode *p_type_test);
		void print_unary_op(UnaryOpNode *p_unary_op);
		void print_variable(VariableNode *p_variable);
		void print_while(WhileNode *p_while);
	public:
		void print_tree(const GDScriptParser &p_parser);
	};
#endif 
	static void cleanup();
};
#endif