### 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
} break;
		case Animation::TYPE_VALUE: {
			Variant v = animation->track_get_key_value(track, key);
			if (hint.type != Variant::NIL) {
				PropertyInfo pi = hint;
				pi.name = PNAME("value");
				p_list->push_back(pi);
			} else {
				PropertyHint val_hint = PROPERTY_HINT_NONE;
				String val_hint_string;
				if (v.get_type() == Variant::OBJECT) {
					
					Ref<Resource> res = v;
					if (res.is_valid()) {
						val_hint = PROPERTY_HINT_RESOURCE_TYPE;
						val_hint_string = res->get_class();
					}
				}
				if (v.get_type() != Variant::NIL) {
					p_list->push_back(PropertyInfo(v.get_type(), PNAME("value"), val_hint, val_hint_string));
				}
			}
		} break;
		case Animation::TYPE_METHOD: {
			p_list->push_back(PropertyInfo(Variant::STRING_NAME, PNAME("name")));
			p_list->push_back(PropertyInfo(Variant::INT, PNAME("arg_count"), PROPERTY_HINT_RANGE, "0,32,1,or_greater"));
			Dictionary d = animation->track_get_key_value(track, key);
			ERR_FAIL_COND(!d.has("args"));
			Vector<Variant> args = d["args"];
			String vtypes;