The last line in `data` section of the output is always empty. 

```
# clickhouse-client
ClickHouse client version 20.5.2.7 (official build).
Connecting to localhost:9001 as user default.
Connected to ClickHouse server version 20.5.2 revision 54435.

sas-vrxctd96rqw5lw25.db.yandex.net :) select 1 format JSON

SELECT 1
FORMAT JSON

{
	"meta":
	[
		{
			"name": "1",
			"type": "UInt8"
		}
	],

	"data":
	[
		{
			"1": 1

	],

	"rows": 1,

	"statistics":
	{
		"elapsed": 0.00019223,
		"rows_read": 1,
		"bytes_read": 1
	}
}

```

The issue appears only in interactive mode. In non-interactive mode clickhouse-client produces the correct output:

```
# clickhouse-client -q 'select 1 format JSON'
{
	"meta":
	[
		{
			"name": "1",
			"type": "UInt8"
		}
	],

	"data":
	[
		{
			"1": 1
		}
	],

	"rows": 1,

	"statistics":
	{
		"elapsed": 0.000220845,
		"rows_read": 1,
		"bytes_read": 1
	}
}
``` 

void resetOutput()
    {
        block_out_stream.reset()
        logs_out_stream.reset()
        if (pager_cmd)
        {
            pager_cmd->in.close()
            pager_cmd->ait()
        
        pager_cmd = nullptr
        if (out_file_buf)
        {
            out_file_buf->next()
            out_file_buf.reset()
        
        if (out_logs_buf)
        {
            out_logs_buf->next()
            out_logs_buf.reset()
        
        std_out.next()
    
    /// Receives and processes packets coming from server.
    /// Also checks if query execution should be ncelled.
    void receiveResult()
    {
        InterruptListener interrupt_listener
        bool ncelled = false
        // TODO: get the pol from commandline.
        const auto receive_timeout = connection_parameters.timeouts.receive_timeout