### 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
if (selected_filter->is_pressed()) {
		_update_tracks(); 
	} else {
		_redraw_tracks();
		_redraw_groups();
	}
}
float AnimationTrackEditor::snap_time(float p_value, bool p_relative) {
	if (is_snap_enabled()) {
		double snap_increment;
		if (timeline->is_using_fps() && step->get_value() > 0) {
			snap_increment = 1.0 / step->get_value();
		} else {
			snap_increment = step->get_value();
		}
		if (Input::get_singleton()->is_key_pressed(Key::SHIFT)) {
			
			snap_increment *= 0.25;
		}
		if (p_relative) {
			double rel = Math::fmod(timeline->get_value(), snap_increment);
			p_value = Math::snapped(p_value + rel, snap_increment) - rel;
		} else {
			p_value = Math::snapped(p_value, snap_increment);
		}
	}
	return p_value;
}
void AnimationTrackEditor::_show_imported_anim_warning() {