I still have this issue 5.2.2.2 on my stable Precise PC, however it should not take too long to get the fix, as I was the one who fixed it and proposed a merge[1], which seems to be merged into 5.2, but unfortunately I couldn't find when it has been released, I couldn't find a changelog entry for it.
[1] https://code.launchpad.net/~evfool/software-center/specs-update/+merge/106242 --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad ** Changed in: software-center (Ubuntu) Status: Incomplete => Fix Committed ** Changed in: software-center (Ubuntu) Assignee: (unassigned) => Robert Roth (evfool) ** Branch linked: lp:~evfool/software-center/specs-update -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/796525 Title: Checking/unchecking any add-on checkbox moves them all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/796525/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs