Using AsyncPopulator on AutoCompleteBox doesn't trigger Populating event

[h0lg]

Describe the bug

When using an AsyncPopulator as the item source of an AutoCompleteBox, its Populating event never gets triggered.

To Reproduce

set up an AutoCompleteBox with an AsyncPopulator and add a handler to the Populating event

Expected behavior

the Populating event handler gets called before AsyncPopulator function is called.

Avalonia version

11.1.0.0

OS

Windows

Additional context

I noticed OnPopulating doesn't have a matching call in PopulateAsync.