Extension for InDesign CC 2023 closes automatically on document close

Hi,

I have an extension for InDesign supporting versions 2020, 2021, 2022.

There is a feature in the extension that causes the current document to close. The extension should remain open unless the user closes it manually.

This behavior changed in CC 2023. The extension closes automatically, if at the time of closing the document there are no other documents open.

Is there a way to avoid this?

I have tried the requestOpenExtension() method, but it doesn't work.
I also looked for any methods that show/hide the extension window, but haven't found anything so far.