version 21.5.5.12 (official build)

I'm trying to change data type for a column that is used in the TTL expression.
It works well when the table is empty.
When the table is not empty, the mutation fails.
As a result the table ends up in an inconsistent state.

```
create table test
(
InsertionDateTime DateTime,
TTLDays Int32 DEFAULT CAST(365, 'Int32')
)
Engine=MergeTree()
order by tuple()
TTL InsertionDateTime + toIntervalDay(TTLDays);

Ok.

insert into test values (now(), 23);

Ok.

ALTER TABLE test modify column TTLDays Int16 DEFAULT CAST(365, 'Int16');

Code: 341, e.displayText() = DB::Exception: Exception happened during execution of mutation 'mutation_2.txt' with part 'all_1_1_0' reason: 'Code: 10, e.displayText() = DB::Exception: Not found column InsertionDateTime in block. There are only columns: TTLDays (version 21.5.5.12 (official build))'. This error maybe retryable or not. In case of unretryable error, mutation can be killed with KILL MUTATION query (version 21.5.5.12 (official build)) [DB Errorcode=341]

insert into test values (now(), 23);

Ok.

select table, column, type, sum(rows) rows, sum(column_bytes_on_disk) on_disk
from system.parts_columns where column like 'TTLDays'
group by database, table, column, type

table | column  | type  | rows | on_disk
------+---------+-------+------+--------
test  | TTLDays | Int32 |    1 |      86
test  | TTLDays | Int16 |    1 |      84
```
{
    return DB::getPartitionAndPredicateExpressionForMutationCommand(command, storage, context);
}
bool MutationsInterpreter::Stage::isAffectingAllColumns(const Names & storage_columns) const
{
    
    for (const auto & storage_column : storage_columns)
        if (!output_columns.count(storage_column))
            return false;
    return true;
}
bool MutationsInterpreter::isAffectingAllColumns() const
{
    auto storage_columns = metadata_snapshot->getColumns().getNamesOfPhysical();
    if (stages.empty())
        throw Exception(ErrorCodes::LOGICAL_ERROR, "Mutation interpreter has no stages");
    return stages.back().isAffectingAllColumns(storage_columns);
}
void MutationsInterpreter::MutationKind::set(const MutationKindEnum & kind)
{
    if (mutation_kind < kind)
        mutation_kind = kind;
}
}