Negative number for Avro's date logicalType

requirements.txt

avro~=1.11.3
fastavro~=1.11.3

test_negative_number.py

from fastavro import json_reader, parse_schema
from io import StringIO

avro_schema = {
    "type": "record",
    "name": "Membership",
    "fields": [
        {"name": "start_date", "type": {"type": "int", "logicalType": "date"}},
        {"name": "end_date", "type": {"type": "int", "logicalType": "date"}},
        {"name": "email", "type": "string"},
        {"name": "ssn", "type": "string"}
    ]
}
schema = parse_schema(avro_schema)
f = StringIO('{"start_date": -1, "end_date": 0, "email": "john.doe@acme.io", "ssn": "123-45-6789"}')
avro_reader = json_reader(f, schema)
for record in avro_reader:
    print(record)