V2 Popup page with a smart list or autocomplete list opens well but when closing it or going back it closes both

Anyone has tried to include a smart list or autocomplete list inside a popup page?
I have a popup page with form fields and one of them needs to be a smart list or an autocomplete list generated via Ajax load that has multiple values to choose from…

The autocomplete list or smart list it opens well over the present popup page but when I click go back arrow to return to the previous popup page it closes first the popup page and then I have to click again and it closes itself all… not giving me the change to go back to the popup page where all the fields are waiting more input…

anyone has a solution for this?

Seems modal stack is working incorrect. Try to redefine back button behaviour

thank you for your reply… and yes… I guess it is so… the stack behaviour is incorrect in this case…