event: when we change the io events to watch we need to figure out if a an event is pending again

src/libsystemd-bus/sd-event.c

@@ -1027,6 +1027,7 @@ _public_ int sd_event_source_set_io_events(sd_event_source *s, uint32_t events)
         }
 
         s->io.events = events;
+        source_set_pending(s, false);
 
         return 0;
 }