### 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_AUDIO: {
					String stream_name = "null";
					Ref<Resource> stream = animation->audio_track_get_key_stream(track, key_idx);
					if (stream.is_valid()) {
						if (stream->get_path().is_resource_file()) {
							stream_name = stream->get_path().get_file();
						} else if (!stream->get_name().is_empty()) {
							stream_name = stream->get_name();
						} else {
							stream_name = stream->get_class();
						}
					}
					text += TTR("Stream:") + " " + stream_name + "\n";
					float so = animation->audio_track_get_key_start_offset(track, key_idx);
					text += TTR("Start (s):") + " " + rtos(so) + "\n";
					float eo = animation->audio_track_get_key_end_offset(track, key_idx);
					text += TTR("End (s):") + " " + rtos(eo) + "\n";
				} break;
				case Animation::TYPE_ANIMATION: {
					String name = animation->animation_track_get_key_animation(track, key_idx);
					text += TTR("Animation Clip:") + " " + name + "\n";
				} break;
			}
			return text;
		}
	}
	return Control::get_tooltip(p_pos);
}
void AnimationTrackEdit::gui_input(const Ref<InputEvent> &p_event) {