'Go NEW=nodual' creates Listers with two folder trees

I am trying to open new Listers in single-display mode, but

Go FROMSEL NEW=nodual

creates Listers with two folder trees and

Go FROMSEL NEW=nodual,notree

creates Listers with zero folder trees.

I'd like to have one folder tree, just like using

Set DUAL=off

I tried to run this as an embedded command, like so

Go FROMSEL NEW
[
Set DUAL=off
]

Unfortunately, only the first new Lister gets set to single display.

Is there a suitable argument for the Go command?

on/off switch
Set TREE=Dual,Toggle

double
Set TREE=Dual,On

single
Set TREE=Dual,Off

How do I get this to work with all new Listers if I open more than one?

That's a bug. We've fixed it for the next beta.

(Your first command Go FROMSEL NEW=nodual is the right one.)

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