### 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
}
				}
				menu->reset_size();
				Vector2 popup_pos = get_screen_position() + interp_mode_rect.position + Vector2(0, interp_mode_rect.size.height);
				menu->set_position(popup_pos);
				menu->popup();
				accept_event();
			}
			if (loop_wrap_rect.has_point(pos)) {
				if (!menu) {
					menu = memnew(PopupMenu);
					add_child(menu);
					menu->connect("id_pressed", callable_mp(this, &AnimationTrackEdit::_menu_selected));
				}
				menu->clear();
				menu->add_icon_item(get_editor_theme_icon(SNAME("InterpWrapClamp")), TTR("Clamp Loop Interp"), MENU_LOOP_CLAMP);
				menu->add_icon_item(get_editor_theme_icon(SNAME("InterpWrapLoop")), TTR("Wrap Loop Interp"), MENU_LOOP_WRAP);
				menu->reset_size();
				Vector2 popup_pos = get_screen_position() + loop_wrap_rect.position + Vector2(0, loop_wrap_rect.size.height);
				menu->set_position(popup_pos);
				menu->popup();
				accept_event();
			}
			if (remove_rect.has_point(pos)) {
				emit_signal(SNAME("remove_request"), track);
				accept_event();
				return;
			}
		}