Created attachment 187695 [details]
Screen recording of issues

SUMMARY
When opening another document it causes previous active document to drop "print size" view mode.
It does not happen when switching already open tabs .
It happens when opening a new document, or new view (ie when a new tab is created).

STEPS TO REPRODUCE
1.  Open document A
2.  Click the print size toggle button at the bottom right
3.  Print size view should now be ON 
4. Open document B (e.g File > New, File > Open, File > Open Recent)
5. Krita will automatically switch to document B's tab 
6. Switch back to document A
7. The print size view mode for document A has been turned off

OBSERVED RESULT
Print size mode for the document is dropped.

EXPECTED RESULT
Print size mode should persist for the chosen document view. 

SOFTWARE/OS VERSIONS
Krita
  Version: 5.2.11 (git a4da714)

Qt
  Version (compiled): 5.15.7
  Version (loaded): 5.15.7

OS Information
  Build ABI: x86_64-little_endian-lp64
  Build CPU: x86_64
  CPU: x86_64
  Kernel Type: linux
  Kernel Version: 6.14.0-37-generic
  Pretty Productname: Ubuntu 24.04.3 LTS
  Product Type: ubuntu
  Product Version: 24.04

ADDITIONAL INFORMATION
I attached a screen recording where I demonstrate the different scenarios: turn on print size and open file, turn on print size and create new view, turn on print size and switch between tabs.