### 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
push_warning(p_source, p_code, Vector<String>{ p_symbols... });
	}
#endif
	void make_completion_context(CompletionType p_type, Node *p_node, int p_argument = -1, bool p_force = false);
	void make_completion_context(CompletionType p_type, Variant::Type p_builtin_type, bool p_force = false);
	void push_completion_call(Node *p_call);
	void pop_completion_call();
	void set_last_completion_call_arg(int p_argument);
	GDScriptTokenizer::Token advance();
	bool match(GDScriptTokenizer::Token::Type p_token_type);
	bool check(GDScriptTokenizer::Token::Type p_token_type) const;
	bool consume(GDScriptTokenizer::Token::Type p_token_type, const String &p_error_message);
	bool is_at_end() const;
	bool is_statement_end_token() const;
	bool is_statement_end() const;
	void end_statement(const String &p_context);
	void synchronize();
	void push_multiline(bool p_state);
	void pop_multiline();
	
	void parse_program();
	ClassNode *parse_class(bool p_is_static);
	void parse_class_name();
	void parse_extends();
	void parse_class_body(bool p_is_multiline);
	template <class T>
	void parse_class_member(T *(GDScriptParser::*p_parse_function)(bool), AnnotationInfo::TargetKind p_target, const String &p_member_kind, bool p_is_static = false);
	SignalNode *parse_signal(bool p_is_static);
	EnumNode *parse_enum(bool p_is_static);