When httpPulse gives us TR_ERROR, don't forget to mark the attempt as NOREACH - otherwise if the previous query was successful, we'd try to connect again and again as fast as we could

libtransmission/tracker.c

@@ -433,6 +433,7 @@ void tr_trackerPulse( tr_tracker_t * tc )
                     tr_trackerPulse( tc );
                     return;
                 }
+                tc->lastAttempt = TC_ATTEMPT_NOREACH;
                 
                 break;