### 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
func_args.clear();
				func_args.push_back(pattern_key_addr);
				codegen.generator->write_call(result_addr, p_value_addr, "has", func_args);
				if (element.value_pattern != nullptr) {
					
					codegen.generator->write_and_left_operand(result_addr);
					
					codegen.generator->write_get(element_addr, pattern_key_addr, p_value_addr);
					
					func_args.clear();
					func_args.push_back(element_addr);
					codegen.generator->write_call_utility(element_type_addr, "typeof", func_args);
					
					result_addr = _parse_match_pattern(codegen, r_error, element.value_pattern, element_addr, element_type_addr, result_addr, false, true);
					if (r_error != OK) {
						return GDScriptCodeGenerator::Address();
					}
					codegen.generator->write_and_right_operand(result_addr);
					codegen.generator->write_end_and(result_addr);
				}
				codegen.generator->write_and_right_operand(result_addr);
				codegen.generator->write_end_and(result_addr);
				
				if (pattern_key_addr.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
					codegen.generator->pop_temporary();
				}
			}
			
			codegen.generator->pop_temporary();
			codegen.generator->pop_temporary();