If appendTo property of confirmDialog is set, defaultFocus doesn't work

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https://stackblitz.com/edit/primeng-confirmdialog-demo-njbgh4?file=src%2Fapp%2Fapp.component.html

Current behavior
If 'appendTo' property is set, the button does not become focused (nor default, nor custom)

Expected behavior
Button accept should be focused by default.

Minimal reproduction of the problem with instructions
Open stackblitz example from this primeng example page, add 'appendTo="body"' to any confirmDialog component.