Transport>Cursor to>Track Start/End oddity

Using Ubuntu 18.04, Audacity 2.4.1 from PPA.

I notice that if I use one of these commands when no track is focussed, then it focusses all the tracks. Is this intentional? I don’t see anything about focus change mentioned in the manual entries for these commands.

If one or more tracks are focussed when I execute the command, then the focus does not change.