Method track shows lines between keys

[KoBeWi]

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:

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

[jsjtxietian]

I think I can see where the bug is.

When drawing keyframes, the editor will call draw_key_link, and it will decide whether to draw a line based on the comparison below. Unfortunately, for method track , track_get_key_value will return a dictionary with methods and args, "multiple calls to the same method" is same in this comparison.

Variant current = animation->track_get_key_value(get_track(), p_index);
Variant next = animation->track_get_key_value(get_track(), p_index + 1);
if (current != next) {
	return;
}

For a quick fix I guess I can add a if here and if it's a method track then return. Any suggestions ?