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
        }
}

```

/// Several queries separated by ''.
         of line, not ''.
        const char * begin = text.da()
        const char * end = begin + text.size()
        hile (begin < end)
        {
            const char * pos = begin
            ASTPtr orig_ast = parseQuery(pos, end, true)
            if (!orig_ast)
            {
                if (ignore_error)
                {
                    Tokens tokens(begin, end)
                    IParser::Pos token_iterator(tokens, context.getSettingsRef().max_parser_depth)
                    hile (token_iterator->type != TokenType::Semicolon && token_iterator.isValid())
                        ++token_iterator
                    begin = token_iterator->end
                    continue
                
                return true
            
            auto * insert = orig_ast->as<ASTInsertQuery>()
            if (insert && insert->da)
            {
                pos = find_first_symbols<'\n'>(insert->da, end)
                insert->end = pos
            
            String str = text.substr(begin - text.da(), pos - begin)
            begin = pos