[v4.4dev7] Godot crash when selecting Skeleton property on MeshInstance3D

[DexterFstone]

Tested versions

reproducible in 4.4dev7

System information

Godot v4.4.dev7 - Windows 10 (build 19045) - Multi-window, 2 monitors - OpenGL ES 3/ANGLE (Compatibility) - ANGLE (AMD, AMD Radeon HD 5570 (0x000068D9) Direct3D11 vs_5_0 ps_5_0, D3D11-8.17.10.1433) - Intel(R) Pentium(R) CPU G2030 @ 3.00GHz (2 threads)

Issue description

After adding a Node3D and MeshInstance3D as children, the Skeleton property shows Node3D as the picked one, and clicking on it makes Godot crash

Steps to reproduce

1. create new 3d scene with root Node3D
2. add a MeshInstance3D
   
3. in inspector click on Skeleton value
   
4. crashed
   https://github.com/user-attachments/assets/b915fa5b-6c19-463f-88cd-6bf1e5f572cd

Minimal reproduction project (MRP)

N/A

[matheusmdx]

This issue was a regression from #99700 and was fixed by pr #100670. The fix will come in the next release.