ImporterMeshInstance3D metadata lost in glTF import process

[emperorofmars]

Based on Godot 4.0.1

In the glTF import proces with 'GLTFDocumentExtension' i would like to set metadata on nodes.
This works fine with most node types. But for 'ImporterMeshInstance3D' all metadata gets lost.
The 'ImporterMeshInstance3D' node gets converted into 'MeshInstance3D' sometime after the 'GLTFDocumentExtension' functions have completed, so i cannot do anything about that.
I would like to have a way to preserve Metadata through the conversion from 'ImporterMeshInstance3D' to 'MeshInstance3D' and similar nodetypes if applicable.

[tamask]

I've created a pull request to resolve this issue: godotengine/godot#87584.

[akien-mga]

Fixed by godotengine/godot#87584.