Revert moving call to recycleReadPacket(), to fix issues with binlog …

…tests

go/mysql/conn.go

@@ -1394,15 +1394,13 @@ func (c *Conn) handleNextCommand(ctx context.Context, handler Handler) error {
 
 	case ComBinlogDumpGTID:
 		ok := c.handleComBinlogDumpGTID(handler, data)
-		c.recycleReadPacket()
 		if !ok {
 			return fmt.Errorf("error handling ComBinlogDumpGTID packet")
 		}
 		return nil
 
 	case ComRegisterReplica:
 		ok := c.handleComRegisterReplica(handler, data)
-		c.recycleReadPacket()
 		if !ok {
 			return fmt.Errorf("error handling ComRegisterReplica packet")
 		}
@@ -1433,6 +1431,8 @@ func (c *Conn) handleComRegisterReplica(handler Handler, data []byte) (kontinue
 		return false
 	}
 
+	c.recycleReadPacket()
+
 	if err := binlogReplicaHandler.ComRegisterReplica(c, replicaHost, replicaPort, replicaUser, replicaPassword); err != nil {
 		c.writeErrorPacketFromError(err)
 		return false
@@ -1467,6 +1467,8 @@ func (c *Conn) handleComBinlogDumpGTID(handler Handler, data []byte) (kontinue b
 		return false
 	}
 
+	c.recycleReadPacket()
+
 	if err := binlogReplicaHandler.ComBinlogDumpGTID(c, logFile, logPos, position.GTIDSet); err != nil {
 		log.Error(err.Error())
 		c.writeErrorPacketFromError(err)