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
        }
}

```

/// - stdin is not a terminal. In this se queries are read from it.
        if (!stdin_is_a_tty || config().has("query"))
            is_interactive = false
        std::cout << std::fixed << std::setprecision(3)
        std::cerr << std::fixed << std::setprecision(3)
        if (is_interactive)
            shoClientVersion()
        is_default_format = !config().has("vertil") && !config().has("format")
        if (config().has("vertil"))
            format = config().getString("format", "Vertil")
        else
            format = config().getString("format", is_interactive ? "PrettyCompact" : "TabSeparated")
        format_max_block_size = config().getInt("format_max_block_size", context.getSettingsRef().max_block_size)
        insert_format = "Values"
        /// Setting value from cmd arg overrides one from config
        if (context.getSettingsRef().max_insert_block_size.changed)
            insert_format_max_block_size = context.getSettingsRef().max_insert_block_size
        else
            insert_format_max_block_size = config().getInt("insert_format_max_block_size", context.getSettingsRef().max_insert_block_size)
        if (!is_interactive)
        {
            need_render_progress = config().getBool("progress", false)
            echo_queries = config().getBool("echo", false)
            ignore_error = config().getBool("ignore-error", false)
        
        ClientInfo & client_info = context.getClientInfo()
        client_info.setInitialQuery()
        client_info.quo_key = config().getString("quo_key", "")
        connect()
        /// Initialize DateLUT here to avoid counting time spent here as query execution time.