**Describe what's wrong**

We have a nested field in a table.
The table is created using SET flatten_nested = 0.
When the server is restarted the field is no longer nested (only flattened arrays appear).

**Does it reproduce on recent release?**

version 22.2.3.1

**How to reproduce**

Create a table using:

` 
SET flatten_nested = 0            
` 
` 
CREATE TABLE test.test    
    (     
        id String,  
       nested_field Nested (nf1 String, nf2 String)  
    ) ENGINE = MergeTree ORDER BY id  
`

Recover the table structure using describe:
`
describe test.test
`
`
name           type
id             String
nested_field   Nested(nf1 String, nf2 String) 
`

Restart click-house server.

Recover the table structure using describe:
`
 name               type            
 id                 String                                                                                          
 nested_field.nf1   Array(String)                                                                                   
 nested_field.nf2   Array(String)                                                                                   
`

*Expected behavior**

Recover the initial structure of the table not he flatenned one.


const auto * aggregate_function_type = typeid_cast<const DataTypeAggregateFunction *>(column_type.get());
            if (attach && aggregate_function_type && aggregate_function_type->isVersioned())
                aggregate_function_type->setVersion(0, true);
            if (col_decl.null_modifier)
            {
                if (column_type->isNullable())
                    throw Exception("Can't use [NOT] NULL modifier with Nullable type", ErrorCodes::ILLEGAL_SYNTAX_FOR_DATA_TYPE);
                if (*col_decl.null_modifier)
                    column_type = makeNullable(column_type);
            }
            else if (make_columns_nullable)
            {
                column_type = makeNullable(column_type);
            }
            else if (!hasNullable(column_type) &&
                     col_decl.default_specifier == "DEFAULT" &&
                     col_decl.default_expression &&
                     col_decl.default_expression->as<ASTLiteral>() &&
                     col_decl.default_expression->as<ASTLiteral>()->value.isNull())
            {
                if (column_type->lowCardinality())
                {
                    const auto * low_cardinality_type = typeid_cast<const DataTypeLowCardinality *>(column_type.get());
                    assert(low_cardinality_type);
                    column_type = std::make_shared<DataTypeLowCardinality>(makeNullable(low_cardinality_type->getDictionaryType()));
                }
                else
                    column_type = makeNullable(column_type);
            }
            column_names_and_types.emplace_back(col_decl.name, column_type);