Raw SQL with parameters does not work with IN Operator

Description
Passing multiple values to the IN operator does not work

Steps To Reproduce

from tortoise import fields, models, Tortoise

class User(models.Model):
    id = fields.IntField(pk=True)
    name = fields.CharField(max_length=30)

# dummy data
bob = await User.create(name="bob")
alice = await User.create(name="alice")
jhon = await User.create(name="jhon")

# manual query MySQL
conn = Tortoise.get_connection("default")

#1 this works
await conn.execute_query_dict("SELECT id FROM user WHERE name IN (%s) ", ["alice"])

#2 this does not work
await conn.execute_query_dict("SELECT id FROM user WHERE name IN (%s) ", ["'alice', 'bob'"])

Expected behavior
Ideally, #2 should return [{"id":"1"}, {"id":"2"}], but it returns an empty resultset instead.

The most probable reason seems that, the conn.escape(args) converts 'alice', 'bob' to ''alice', 'bob'', and the IN operator treats it as a single element

Start at the connection path used by execute_query_dict and reproduce the MySQL example with one value and multiple values for the IN operator. Trace how the parameter list is escaped and bound; done means the multi-value query returns both matching IDs without breaking the single-value case.