Undo DBus namespace switch (com.ubports.gsettings back to com.canonical.gsettings)
The gsettings-qt project is meanwhile "widely" used by other software components around the globe. One example where it is heavily used is the Deepin Desktop Environment.
For the sake of compatibility under the same project name (etc.), I dearly recommand switching the DBus namespace back from com.ubports.gsettings to com.canonical.gsettings.
DBus namespace changes only make sense for components that are solely owned and used by Unity8 desktop components.