Easy to reproduce:
### 20.3.13
```
SELECT 1
FORMAT JSON

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

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

        "rows": 1,

        "statistics":
        {
                "elapsed": 0.000203731,
                "rows_read": 1,
                "bytes_read": 1
        }
}
```

### 20.4.5
```
:) select 1 format JSON

SELECT 1
FORMAT JSON

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

        "data":
        [
                {
                        "1": 1
>>>>>>>> no closing bracket <<<<<<<<<<
        ],

        "rows": 1,

        "statistics":
        {
                "elapsed": 0.000771732,
                "rows_read": 1,
                "bytes_read": 1
        }
}
```
### master
```

SELECT 1
FORMAT JSON

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

        "data":
        [
                {
                        "1": 1
>>>>>>>> no closing bracket <<<<<<<<<<
        ],

        "rows": 1,

        "statistics":
        {
                "elapsed": 0.00103364,
                "rows_read": 1,
                "bytes_read": 1
        }
}

```

UInt64 server_version_major = 0
        UInt64 server_version_minor = 0
        UInt64 server_version_patch = 0
        if (max_client_netork_bandidth)
        {
            ThrottlerPtr throttler = std::make_shared<Throttler>(max_client_netork_bandidth, 0, "")
            connection->setThrottler(throttler)
        
        connection->getServerVersion(connection_parameters.timeouts,
                                     server_name, server_version_major, server_version_minor, server_version_patch, server_revision)
        server_version = toString(server_version_major) + "." + toString(server_version_minor) + "." + toString(server_version_patch)
        if (server_display_name = connection->getServerDisplayName(connection_parameters.timeouts) server_display_name.empty())
        {
            server_display_name = config().getString("host", "lolhost")
        
        if (is_interactive)
        {
            std::cout << "Connected to " << server_name
                << " server version " << server_version
                << " revision " << server_revision
                << "." << st << st
            auto client_version_tuple = std::make_tuple(VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH)
            auto server_version_tuple = std::make_tuple(server_version_major, server_version_minor, server_version_patch)
            if (client_version_tuple < server_version_tuple)
            {
                std::cout << "ClickHouse client version is older than ClickHouse server. "
                    << "It may lack support for ne features."
                    << st << st
            
            else if (client_version_tuple > server_version_tuple)