`Decimal128Field` raise `decimal.InvalidOperation` error occurs under certain circumstances

[euynus]

When initializing a model with a Decimal128Field in the clickhouse_orm library, a decimal.InvalidOperation error occurs under certain circumstances.

Reproducible Example:

class TestDecimalModel(ClickHouseModel):
    value = fields.Decimal128Field(scale=30, default=0)

a = TestDecimalModel(value=1)

Expected Behavior:

I expected the model TestDecimalModel to be initialized without any errors.

Environment Details:

Python version: 3.8.16
clickhouse_orm version: 2.1.0
Operating System: macOS 14.5

Additional Context:

The error seems to occur specifically when using a Decimal128Field with certain parameters. This issue might be related to how the to_python method handles the value.

from python docs

Unlike hardware based binary floating point, the decimal module has a user alterable precision (defaulting to 28 places) which can be as large as needed for a given problem:

[euynus]

Additional Context:

The following code can fix this.
I want to know if this is the best practice for fixing this issue.

class DecimalField(Field):
    '''
    Base class for all decimal fields. Can also be used directly.
    '''

    ...
    def _round(self, value):
        with localcontext() as ctx:
           ctx.prec = self.precision
           return value.quantize(self.exp)
    ...