Infinitive loop while parsing Array of strings

[Romamo]

Due to repeated unescape original data destroyed and failed to be parsed

from infi.clickhouse_orm import Database, Memory, fields, models

class Test(models.Model):
field = fields.ArrayField(fields.StringField())

engine = Memory()

db = Database('demo')
db.drop_table(Test)
db.create_table(Test)

test = Test(field=["']"])

db.insert([test])
print("Data inserted. Trying to select... Infinite loop...")
for test in db.select("SELECT * FROM test", model_class=Test):
print(test.field)

Fix #198