### 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
insert_confirm_text->set_text(vformat(TTR("Create new track for %s and insert key?") + "\n\n" + shortcut_hint, last_track_query));
		} else {
			insert_confirm_text->set_text(vformat(TTR("Create %d new tracks and insert keys?") + "\n\n" + shortcut_hint, num_tracks));
		}
		insert_confirm_bezier->set_visible(all_bezier);
		insert_confirm_reset->set_visible(reset_allowed);
		insert_confirm->set_ok_button_text(TTR("Create"));
		insert_confirm->popup_centered();
	} else {
		_insert_track(reset_allowed && EDITOR_GET("editors/animation/default_create_reset_tracks"), all_bezier && EDITOR_GET("editors/animation/default_create_bezier_tracks"));
	}
	insert_queue = false;
}
void AnimationTrackEditor::_query_insert(const InsertData &p_id) {
	if (!insert_queue) {
		insert_data.clear();
	}
	for (const InsertData &E : insert_data) {
		
		if (E.path == p_id.path && E.type == p_id.type) {
			return; 
		}
	}
	insert_data.push_back(p_id);
	
	if (!insert_queue) {
		commit_insert_queue();
	}
}
void AnimationTrackEditor::_insert_track(bool p_reset_wanted, bool p_create_beziers) {