Cannot move a window of a pop-up with error message

[max chistyakov]

1. Currently lsb_release -rd show me Description: Ubuntu 24.04 LTS, but it seems I don't completely update from the 23.x version

2. apt-cache policy update-manager
update-manager:
  Installed: 1:24.04.6
  Candidate: 1:24.04.6
  Version table:
 *** 1:24.04.6 500
        500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu noble/main i386 Packages
        100 /var/lib/dpkg/status

3. I upgraded the Linux from 23.x to 24.10. During the installation, a failure happened, and was appeared a pop-up with a message "Could not install the upgrades" . When I tried to move this pop-up apart (not to close, because if I close the pop-up, the entire window is going to close), the "Distribution Upgrade" entire window moved instead of the pop-up only (what I expected to happen).
How does it look:
https://youtu.be/ShwYq5KcMp8
P.S. For something reason, there is no mouse pointer on the video, so it's not clear I did move the pop-up, not entire window

[Nathan Teodosio (nteodosio)]

Marking the dialog window as transient[1] and or modal[2], as GTK directs, causes this annoyance.

Unfortunately all the dialogs in the program are sub-classed from this transient-and-modal window class, so thought must be given for whether we want to remove those properties entirely or just allow the main window to continue to exist after the dialog is closed.

[1] https://docs.gtk.org/gtk3/method.Window.set_transient_for.html
[2] https://docs.gtk.org/gtk3/method.Window.set_modal.html

[Nathan Teodosio (nteodosio)]

My comment #1 analysis was based on Update Manager, which is not actually the affected component. It however still applies to the affected component, ubuntu-release-updater, insofar as the marking the dialog transient causes the issue.