BUG/MINOR: quic: Missing recovery start timer reset

The recovery start time must be reset after a persistent congestion has been
detected.
diff --git a/src/quic_cc_newreno.c b/src/quic_cc_newreno.c
index 48219ff..a9b5057 100644
--- a/src/quic_cc_newreno.c
+++ b/src/quic_cc_newreno.c
@@ -111,6 +111,7 @@
 			cc->algo_state.nr.cwnd = path->min_cwnd;
 			/* Re-entering slow start state. */
 			cc->algo_state.nr.state = QUIC_CC_ST_SS;
+			cc->algo_state.nr.recovery_start_time = 0;
 		}
 		path->cwnd = cc->algo_state.nr.cwnd;
 		break;