**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.


else
            metadata_path = metadata_path / "store" / DatabaseCatalog::getPathForUUID(create.uuid);
    }
    else
    {
        bool is_on_cluster = getContext()->getClientInfo().query_kind == ClientInfo::QueryKind::SECONDARY_QUERY;
        if (create.uuid != UUIDHelpers::Nil && !is_on_cluster)
            throw Exception("Ordinary database engine does not support UUID", ErrorCodes::INCORRECT_QUERY);
        
        create.uuid = UUIDHelpers::Nil;
        metadata_path = metadata_path / "metadata" / database_name_escaped;
    }
    if ((create.storage->engine->name == "MaterializeMySQL" || create.storage->engine->name == "MaterializedMySQL")
        && !getContext()->getSettingsRef().allow_experimental_database_materialized_mysql
        && !internal)
    {
        throw Exception("MaterializedMySQL is an experimental database engine. "
                        "Enable allow_experimental_database_materialized_mysql to use it.", ErrorCodes::UNKNOWN_DATABASE_ENGINE);
    }
    if (create.storage->engine->name == "Replicated"
        && !getContext()->getSettingsRef().allow_experimental_database_replicated
        && !internal)
    {
        throw Exception("Replicated is an experimental database engine. "
                        "Enable allow_experimental_database_replicated to use it.", ErrorCodes::UNKNOWN_DATABASE_ENGINE);
    }
    if (create.storage->engine->name == "MaterializedPostgreSQL"
        && !getContext()->getSettingsRef().allow_experimental_database_materialized_postgresql
        && !internal)
    {