### 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
p_list->push_back(PropertyInfo(Variant::INT, "args/" + itos(i) + "/type", PROPERTY_HINT_ENUM, vtypes));
					if (args[i].get_type() != Variant::NIL) {
						p_list->push_back(PropertyInfo(args[i].get_type(), "args/" + itos(i) + "/value"));
					}
				}
			} break;
			case Animation::TYPE_BEZIER: {
				p_list->push_back(PropertyInfo(Variant::FLOAT, "value"));
				p_list->push_back(PropertyInfo(Variant::VECTOR2, "in_handle"));
				p_list->push_back(PropertyInfo(Variant::VECTOR2, "out_handle"));
				p_list->push_back(PropertyInfo(Variant::INT, "handle_mode", PROPERTY_HINT_ENUM, "Free,Linear,Balanced,Mirrored"));
			} break;
			case Animation::TYPE_AUDIO: {
				p_list->push_back(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"));
				p_list->push_back(PropertyInfo(Variant::FLOAT, "start_offset", PROPERTY_HINT_RANGE, "0,3600,0.0001,or_greater"));
				p_list->push_back(PropertyInfo(Variant::FLOAT, "end_offset", PROPERTY_HINT_RANGE, "0,3600,0.0001,or_greater"));
			} break;
			case Animation::TYPE_ANIMATION: {
				if (key_ofs_map.size() > 1) {
					break;
				}
				String animations;
				if (root_path && root_path->has_node(animation->track_get_path(first_track))) {
					AnimationPlayer *ap = Object::cast_to<AnimationPlayer>(root_path->get_node(animation->track_get_path(first_track)));
					if (ap) {
						List<StringName> anims;
						ap->get_animation_list(&anims);
						for (List<StringName>::Element *G = anims.front(); G; G = G->next()) {
							if (!animations.is_empty()) {
								animations += ",";