Comment # 14 on bug 1209741 from Fabian Vogt

(In reply to Franck Bui from comment #12)
> That said I agree that user manager instances should have their own session
> keyring
> properly hooked up even though it doesn't sound that useful for user
> services to share keys at a first glance.

The graphical session itself is split over multiple services, so unless you
want applications started by keyboard shortcuts (kglobalaccel) have a different
keyring than applications started by the start menu (plasmashell) or the
command launcher (krunner), this is needed.