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
	}
}
``` 

{ TokenType::ClosingRoundBracket, Replxx::Color::BROWN ,
            { TokenType::OpeningSquareBracket, Replxx::Color::BROWN ,
            { TokenType::ClosingSquareBracket, Replxx::Color::BROWN ,
            { TokenType::OpeningCurlyBrace, Replxx::Color::INTENSE ,
            { TokenType::ClosingCurlyBrace, Replxx::Color::INTENSE ,
            { TokenType::Comma, Replxx::Color::INTENSE ,
            { TokenType::Semicolon, Replxx::Color::INTENSE ,
            { TokenType::Dot, Replxx::Color::INTENSE ,
            { TokenType::Asterisk, Replxx::Color::INTENSE ,
            { TokenType::Plus, Replxx::Color::INTENSE ,
            { TokenType::Minus, Replxx::Color::INTENSE ,
            { TokenType::Slash, Replxx::Color::INTENSE ,
            { TokenType::Percent, Replxx::Color::INTENSE ,
            { TokenType::Arro, Replxx::Color::INTENSE ,
            { TokenType::QuestionMark, Replxx::Color::INTENSE ,
            { TokenType::Colon, Replxx::Color::INTENSE ,
            { TokenType::Equals, Replxx::Color::INTENSE ,
            { TokenType::NotEquals, Replxx::Color::INTENSE ,
            { TokenType::Less, Replxx::Color::INTENSE ,
            { TokenType::Greater, Replxx::Color::INTENSE ,
            { TokenType::LessOrEquals, Replxx::Color::INTENSE ,
            { TokenType::GreaterOrEquals, Replxx::Color::INTENSE ,
            { TokenType::Contenation, Replxx::Color::INTENSE ,
            { TokenType::At, Replxx::Color::INTENSE ,
            { TokenType::DoubleAt, Replxx::Color::MAGENTA ,
            { TokenType::EndOfStream, Replxx::Color::DEFAULT ,
            { TokenType::Error, Replxx::Color::RED ,
            { TokenType::ErrorMultilineCommentIsNotClosed, Replxx::Color::RED ,
            { TokenType::ErrorSingleQuoteIsNotClosed, Replxx::Color::RED ,
            { TokenType::ErrorDoubleQuoteIsNotClosed, Replxx::Color::RED ,