Keep PDF Page when Moving it to another Subwindow

Use case or problem

When moving a PDF from one stack to another, or creating a new sub-window with the PDF via drag&drop, the PDF always jumps to the beginning.
This is often annoying when moving the PDF around, so it is easier to take notes of it.

Proposed solution

It would be great if the currently viewed page of the PDF would be kept when moving the PDF to another stack or sub-window.