Do not process D-Bus signals twice
Do not process D-Bus signals twice

With the replication of D-Bus messages on different object paths, it's possible
that the same signal would be processed twice (because the AgManager is
listening on the global service type and on another one); therefore, we must
remember the last signals we processed, and avoid re-processing them. We don't
need to remember many of them; actually, in most cases the remembering only the
last one is enough, but we keep the last three just for extra safety.


Distrotech/libaccounts-glib,Distrotech/libaccounts-glib,Distrotech/libaccounts-glib,Distrotech/libaccounts-glib