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
        }
}

```

connection->forceConnected(connection_parameters.timeouts)
            if (received_exception_from_server && !ignore_error)
            {
                if (is_interactive)
                    break
                else
                    return false
            
        
        return true
    
    // Returns the last position e could parse.
    tring & text)
    {
        /// Several queries separated by ''.
         of line, not ''.
        const char * begin = text.da()
        const char * end = begin + text.size()
        hile (begin < end)
        {
            // Skip hitespace before the query
            ) || *begin == '')
            {
                ++begin
            
            const auto * this_query_begin = begin
            ASTPtr orig_ast = parseQuery(begin, end, true)
            if (!orig_ast)
            {
                // Can't continue after a parsing error