Script names do not default to snake_case

[IAmNotIsaac]

Godot version

4.0 stable

System information

N/A

Issue description

When creating scripts on nodes, the name will use the name of the scene if it is the root node (which does default to snake_case). This does not apply to unsaved scenes, children of unsaved scenes, or even children of saved scenes, where in which all should take on the snake_case of the node's name they are being applied to. See video attached.

2023-03-17.11-33-37.mp4

Steps to reproduce

Setup is thoroughly described and visualised in both the issue description and the provided video.

Minimal reproduction project

N/A

[IAmNotIsaac]

Tested in 4.0 rc2, the issue remains. The setup is identical.

[Calinou]

• Duplicate of The "Attach Node Script" dialog should suggest snake_case file names, consistent with the documentation godot-proposals#1211.