Exported & animated Node/Array[Node]/etc lose reference(s) when the keyframe is reinspected after reopening the scene

[AeioMuch]

Tested versions

• Reproducible in 4.3.dev (2efbc6b) and before

System information

Godot v4.3.dev (2efbc6b) - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3060 (NVIDIA; 31.0.15.5222) - Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz (8 Threads)

Issue description

The exported Node/Array[Node] property/properties lose their path(s)/reference(s) (the array keep its size, just the elements are not assigned anymore) when there's an AnimationPlayer's keyframe for them, and the scene is saved then reopened then the keyframe is clicked again. Here's a video :

godot.windows.editor.dev.x86_64_CASVL6xYfn.mp4

This is not the same issue as #90190 which is fixed in current 4.3.dev

Steps to reproduce

1. @export a Node or Array[Node]
2. Assign node(s)
3. Create animation in AnimationPlayer
4. Create keyframe for the exported property
5. Witness that the property in the AnimationTrackKeyEdit still have the reference(s)
6. Save, close and reopen that scene
7. Check the property for that keyframe again
8. Witness that they have lost the refs.

Minimal reproduction project (MRP)

N/A