Send a blank sessionid in proxy mode so clients don't think we have resumed if enonce1 ends up matching on reconnect

src/stratifier.c

@@ -2672,10 +2672,18 @@ static json_t *parse_subscribe(stratum_instance_t *client, const int64_t client_
 	/* Workbases will exist if sdata->current_workbase is not NULL */
 	ck_rlock(&sdata->workbase_lock);
 	n2len = sdata->workbases->enonce2varlen;
-	JSON_CPACK(ret, "[[[s,s]],s,i]", "mining.notify", client->enonce1, client->enonce1,
-			n2len);
 	ck_runlock(&sdata->workbase_lock);
 
+	/* Send a blank sessionid in proxy mode so clients don't think we have
+	 * resumed if enonce1 ends up matching on reconnect. */
+	if (ckp->proxy) {
+		JSON_CPACK(ret, "[[[s,s]],s,i]", "mining.notify", "", client->enonce1,
+				n2len);
+	} else {
+		JSON_CPACK(ret, "[[[s,s]],s,i]", "mining.notify", client->enonce1, client->enonce1,
+				n2len);
+	}
+
 	client->subscribed = true;
 
 	return ret;