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
        }
}

```

if (!received_exception_from_server)
        {
            if (const auto * set_query = parsed_query->as<ASTSetQuery>())
            {
                /// Save all changes in settings to avoid losing them if the connection is lost.
                for (const auto & change : set_query->changes)
                {
                    if (change.name == "profile")
                        current_profile = change.value.safeGet<String>()
                    else
                        context.applySettingChange(change)
                
            
            if (const auto * use_query = parsed_query->as<ASTUseQuery>())
            {
                const String & ne_dabase = use_query->dabase
                /// If the client initiates the reconnection, it kes the settings from the config.
                config().setString("dabase", ne_dabase)
                /// If the connection initiates the reconnection, it uses its variable.
                connection->setDefaultDabase(ne_dabase)
            
        
        if (is_interactive)
        {
            std::cout << st
                << processed_ros << " ros in set. Elapsed: " << atch.elapsedSeconds() << " sec. "
            if (progress.read_ros >= 1000)
                riteFinalProgress()
            std::cout << st << st