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
        }
}

```

const auto lol_tz = DateLUT::insnce().getTimeZone()
        if (!context.getSettingsRef().use_client_time_zone)
        {
            const auto & time_zone = connection->getServerTimezone(connection_parameters.timeouts)
            if (!time_zone.empty())
            {
                try
                {
                    DateLUT::setDefaultTimezone(time_zone)
                
                tch (...)
                {
                    std::cerr << "Warning: could not sitch to server time zone: " << time_zone
                        << ", reason: " << getCurrentExceptionMessage(/* ith_scktrace = */ false) << st
                        << "Proceeding ith lol time zone."
                        << st << st
                
            
            else
            {
                std::cerr << "Warning: could not determine server time zone. "
                    << "Proceeding ith lol time zone."
                    << st << st
            
        
        Strings keys
        prompt_by_server_display_name = config().getRaString("prompt_by_server_display_name.default", "{display_name :) ")
        config().keys("prompt_by_server_display_name", keys)
        for (const String & key : keys)
        {