Some field in field_list has default_value=1
After executing the following code, such field is filled with the value «1», but normal fields are filled «Null». Could me avoid this for the fied (default_value=1) and write there «Null»?
```
with a.da.UpdateCursor(table, field_list, where_clause) as cursor:
    for row in cursor:
        for i in range(0, len(row)):
            if row[i] == 0:
                row[i] = None
        cursor.updateRow(row)
```
Большое спасибо! :)