### 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)

NONE = 0,
			SCRIPT = 1 << 0,
			CLASS = 1 << 1,
			VARIABLE = 1 << 2,
			CONSTANT = 1 << 3,
			SIGNAL = 1 << 4,
			FUNCTION = 1 << 5,
			STATEMENT = 1 << 6,
			STANDALONE = 1 << 7,
			CLASS_LEVEL = CLASS | VARIABLE | FUNCTION,
		};
		uint32_t target_kind = 0; 
		AnnotationAction apply = nullptr;
		MethodInfo info;
	};
	HashMap<StringName, AnnotationInfo> valid_annotations;
	List<AnnotationNode *> annotation_stack;
	typedef ExpressionNode *(GDScriptParser::*ParseFunction)(ExpressionNode *p_previous_operand, bool p_can_assign);
	
	enum Precedence {