### 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 (animation->track_get_type(i) == Animation::TYPE_VALUE) {
			if (animation->track_get_path(i) != np) {
				continue;
			}
			InsertData id;
			id.path = np;
			id.track_idx = i;
			id.value = p_value;
			id.type = Animation::TYPE_VALUE;
			
			id.query = vformat(TTR("property '%s'"), p_property);
			id.advance = false;
			
			_query_insert(id);
			inserted = true;
		} else if (animation->track_get_type(i) == Animation::TYPE_BEZIER) {
			Variant value;
			String track_path = animation->track_get_path(i);
			if (track_path == np) {
				value = p_value; 
			} else {
				int sep = track_path.rfind(":");
				if (sep != -1) {
					String base_path = track_path.substr(0, sep);
					if (base_path == np) {
						String value_name = track_path.substr(sep + 1);
						value = p_value.get(value_name);
					} else {
						continue;
					}