Scroll begin and Scroll end notifications are not sent

[AhNesh]

Godot version

v4.2.beta2.official [f8818f8]

System information

Windows 10

Issue description

The NOTIFICATION_SCROLL_BEGIN and NOTIFICTION_SCROLL_END notifications are not propagated to child nodes of ScrollContainer.

Steps to reproduce

The MPR has a main scene with a ScrollContainer, a VBoxContainer and a bunch of Labels so it is tall enough to scroll. The first label has this script:

func _notification(what):
	if what == NOTIFICATION_SCROLL_BEGIN:
		print("scroll begin") #never happens
	elif what == NOTIFICATION_SCROLL_END:
		print("scroll end") #never happens

Scrolling in the ScrollContainer should trigger this notification, but it does not.

Minimal reproduction project

scroll notification.zip

[AThousandShips]

Related to:

• scroll_started and scroll_ended signals don't get emitted for ScrollContainer on Windows but they do work on Android #81512