### Godot version

4.2 dev3

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description

If you have a Method Track with multiple calls to the same method, they are joined together and makes things unreadable:
![image](https://github.com/godotengine/godot/assets/2223172/a2ab8446-28a1-440b-b0d5-5049f5d705b4)
The horizontal line shouldn't be used here. I think it might be a regression.

### Steps to reproduce

1. Add AnimationPlayer
2. Add a Method Track (with Add Track button)
3. Add some key to the track
4. Add another key with the same method

### Minimal reproduction project

N/A
case Animation::LOOP_LINEAR: {
			loop->set_icon(get_editor_theme_icon(SNAME("Loop")));
			loop->set_pressed(true);
		} break;
		case Animation::LOOP_PINGPONG: {
			loop->set_icon(get_editor_theme_icon(SNAME("PingPongLoop")));
			loop->set_pressed(true);
		} break;
		default:
			break;
	}
	editing = false;
}
void AnimationTimelineEdit::_play_position_draw() {
	if (!animation.is_valid() || play_position_pos < 0) {
		return;
	}
	float scale = get_zoom_scale();
	int h = play_position->get_size().height;
	int px = (-get_value() + play_position_pos) * scale + get_name_limit();
	if (px >= get_name_limit() && px < (play_position->get_size().width - get_buttons_width())) {
		Color color = get_theme_color(SNAME("accent_color"), EditorStringName(Editor));
		play_position->draw_line(Point2(px, 0), Point2(px, h), color, Math::round(2 * EDSCALE));
		play_position->draw_texture(
				get_editor_theme_icon(SNAME("TimelineIndicator")),
				Point2(px - get_editor_theme_icon(SNAME("TimelineIndicator"))->get_width() * 0.5, 0),
				color);
	}
}
void AnimationTimelineEdit::gui_input(const Ref<InputEvent> &p_event) {