Comment 13 for bug 1548425

Steps to reproduce:

1. Open terminal
2. Run 'update-manager'
3. Wait for it to finish checking for updates

This bug results in the following error being printed to the terminal, possibly several times:

    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/UpdateManager/ChangelogViewer.py", line 248, in visibility_notify_event
        self.check_hovering(bx, by)
      File "/usr/lib/python3/dist-packages/UpdateManager/ChangelogViewer.py", line 259, in check_hovering
        tags = iter.get_tags()
    AttributeError: '_ResultTuple' object has no attribute 'get_tags'

BTW the update-manager window does not disappear and continues to be functional, despite this error.