get_path() in Resource returns a empty string when it is created on disk. about godot HOT 2 OPEN

Hi! It looks like this happens because the resource is initialized before you even get to choose the path in the file picker dialog. Resources don't seem to have a notification for when they are saved to disk, but the following hacky workaround using EditorFileSystem works:

@tool
extends Resource
class_name TestResource

@export var library_owner: String = await default_var()


func default_var() -> String:
	await EditorInterface.get_resource_filesystem().filesystem_changed
	print(get_path())
	return get_path()

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I thought that would be the issue, but what I would expect is an error to occur to tell me it could not be done, to exist a signal that is executed when a resource is created or at least a note in the documentation saying it was a expected behavior.

None of those things seem to be the case so I would say it is indeed a bug.

Ideally we would have the signal tho. That would be quite handy.

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