### Godot version

4.0.2.stable.mono

### System information

Windows 10 - 4.0.2.stable.mono - Any Renderer

### Issue description

In a script with an `@export` variable (with a non-default value), Godot will replace the first variable in the category with the same name. For example, if you're exporting a variable called "Vector", and the value is set to a non-default value, the first variable in the category called "Vector" will also be changed to the same value.

### Steps to reproduce

Attach said script to a node:
```
extends Node

@export var Vector: Vector2
@export_category("Vector")
@export var Var2: float = 1

func _process(delta):
	print(Var2)
```
When changing the value of the `Vector` export variable, the variable Var2 will contain the same value. This does not happen when the `@export_category` has a different name.

### Minimal reproduction project

N/A
Vector<GDScriptCodeGenerator::Address> typeof_args;
			typeof_args.push_back(expr_addr);
			codegen.generator->write_call_utility(expr_type_addr, "typeof", typeof_args);
			
			codegen.generator->write_binary_operator(result_addr, Variant::OP_EQUAL, p_type_addr, expr_type_addr);
			
			codegen.generator->write_binary_operator(stringy_comp_addr, Variant::OP_EQUAL, p_type_addr, type_string_addr);
			codegen.generator->write_binary_operator(stringy_comp_addr_2, Variant::OP_EQUAL, expr_type_addr, type_stringname_addr);
			codegen.generator->write_binary_operator(stringy_comp_addr, Variant::OP_AND, stringy_comp_addr, stringy_comp_addr_2);
			codegen.generator->write_binary_operator(result_addr, Variant::OP_OR, result_addr, stringy_comp_addr);
			
			codegen.generator->write_binary_operator(stringy_comp_addr, Variant::OP_EQUAL, p_type_addr, type_stringname_addr);
			codegen.generator->write_binary_operator(stringy_comp_addr_2, Variant::OP_EQUAL, expr_type_addr, type_string_addr);
			codegen.generator->write_binary_operator(stringy_comp_addr, Variant::OP_AND, stringy_comp_addr, stringy_comp_addr_2);
			codegen.generator->write_binary_operator(result_addr, Variant::OP_OR, result_addr, stringy_comp_addr);
			codegen.generator->pop_temporary(); 
			codegen.generator->pop_temporary(); 
			codegen.generator->pop_temporary(); 
			codegen.generator->write_and_left_operand(result_addr);
			
			codegen.generator->write_binary_operator(equality_test_addr, Variant::OP_EQUAL, p_value_addr, expr_addr);
			codegen.generator->write_and_right_operand(equality_test_addr);
			
			codegen.generator->write_end_and(result_addr);
			
			if (expr_addr.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
				codegen.generator->pop_temporary();
			}
			codegen.generator->pop_temporary();