[Bug 2122357] Please test proposed package

[Robie Basak]

Hello Gabriel, or anyone else affected,

Accepted software-properties into plucky-proposed. The package will
build now and be available at
https://launchpad.net/ubuntu/+source/software-properties/0.111.1 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
plucky to verification-done-plucky. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-plucky. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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https://bugs.launchpad.net/bugs/2122357

Title:
  [SRU] Dialog not opening after selecting "Other" for Ubuntu Software
  source

Status in software-properties package in Ubuntu:
  Fix Released
Status in software-properties source package in Plucky:
  Fix Committed
Status in software-properties source package in Questing:
  Fix Released

Bug description:
  [Impact]

  Users are unable to select alternative mirrors under Software Sources
  for Kubuntu, Lubuntu, and Ubuntu Studio which use software-properties-
  qt. As it turns out, this is because DialogMirror.py was never ported
  to Qt6.

  [Test Plan]

  Steps to reproduce.

  1) Go to "Software Sources"
  2) Go to "Ubuntu Software" tab
  3) On the "Download from:" field select the option "Other..." in the dropdown.

  Expected result: A dialog opens which allows selecting a mirror.
  Actual result: "Software Sources" tab freezes for ~1 second and the dialog is not opened.

  [What problems could occur]

  There may be more issues that could occur, such as other fields being
  incomplete, but this has been well-tested.

  [Original Report Information]

  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: software-properties-qt 0.111
  Uname: Linux 6.16.3-061603-generic x86_64
  ApportVersion: 2.32.0-0ubuntu5.3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: KDE
  Date: Mon Sep  8 20:53:22 2025
  InstallationDate: Installed on 2025-08-07 (32 days ago)
  InstallationMedia: Kubuntu 25.04 "Plucky Puffin" - Release amd64 (20250417)
  PackageArchitecture: all
  SourcePackage: software-properties
  UpgradeStatus: No upgrade log present (probably fresh install)

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