### 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)

switch (p_pattern->pattern_type) {
		case GDScriptParser::PatternNode::PT_LITERAL: {
			if (p_is_nested) {
				codegen.generator->write_and_left_operand(p_previous_test);
			} else if (!p_is_first) {
				codegen.generator->write_or_left_operand(p_previous_test);
			}
			
			Variant::Type literal_type = p_pattern->literal->value.get_type();
			GDScriptCodeGenerator::Address literal_type_addr = codegen.add_constant(literal_type);
			
			GDScriptDataType equality_type;
			equality_type.has_type = true;
			equality_type.kind = GDScriptDataType::BUILTIN;
			equality_type.builtin_type = Variant::BOOL;
			
			GDScriptCodeGenerator::Address type_equality_addr = codegen.add_temporary(equality_type);
			codegen.generator->write_binary_operator(type_equality_addr, Variant::OP_EQUAL, p_type_addr, literal_type_addr);
			if (literal_type == Variant::STRING) {
				GDScriptCodeGenerator::Address type_stringname_addr = codegen.add_constant(Variant::STRING_NAME);
				
				GDScriptCodeGenerator::Address tmp_comp_addr = codegen.add_temporary(equality_type);
				codegen.generator->write_binary_operator(tmp_comp_addr, Variant::OP_EQUAL, p_type_addr, type_stringname_addr);
				codegen.generator->write_binary_operator(type_equality_addr, Variant::OP_OR, type_equality_addr, tmp_comp_addr);
				codegen.generator->pop_temporary(); 
			} else if (literal_type == Variant::STRING_NAME) {
				GDScriptCodeGenerator::Address type_string_addr = codegen.add_constant(Variant::STRING);
				
				GDScriptCodeGenerator::Address tmp_comp_addr = codegen.add_temporary(equality_type);
				codegen.generator->write_binary_operator(tmp_comp_addr, Variant::OP_EQUAL, p_type_addr, type_string_addr);