### 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
} break;
				default: {
					GDScriptCodeGenerator::Address left_operand = _parse_expression(codegen, r_error, binary->left_operand);
					GDScriptCodeGenerator::Address right_operand = _parse_expression(codegen, r_error, binary->right_operand);
					gen->write_binary_operator(result, binary->variant_op, left_operand, right_operand);
					if (right_operand.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
						gen->pop_temporary();
					}
					if (left_operand.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
						gen->pop_temporary();
					}
				}
			}
			return result;
		} break;
		case GDScriptParser::Node::TERNARY_OPERATOR: {
			
			const GDScriptParser::TernaryOpNode *ternary = static_cast<const GDScriptParser::TernaryOpNode *>(p_expression);
			GDScriptCodeGenerator::Address result = codegen.add_temporary(_gdtype_from_datatype(ternary->get_datatype(), codegen.script));
			gen->write_start_ternary(result);
			GDScriptCodeGenerator::Address condition = _parse_expression(codegen, r_error, ternary->condition);
			if (r_error) {
				return GDScriptCodeGenerator::Address();
			}
			gen->write_ternary_condition(condition);
			if (condition.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
				gen->pop_temporary();
			}
			GDScriptCodeGenerator::Address true_expr = _parse_expression(codegen, r_error, ternary->true_expr);
			if (r_error) {