Prefect doesn't show zero number from enum variants in UI dropdown

[peterochek]

Bug summary

Hello!
I have following prefect setup. When setting one of the parameters to Python Enum '0' variant is not shown in drop-down list.

Same happens if i set OrderType extended from 'pydantic.baseModel`

class OrderStatus(enum.IntEnum):
    ACCEPTED = 0
    CANCELED = 1

@dataclass
class OrderType:
    status: OrderStatus
    flag: OrderFlag

@flow(log_prints=True)
def rtt_flow(order_types: list[OrderType]):
    logger = get_run_logger()

Version info

Version:             3.2.6
API version:         0.8.4
Python version:      3.11.10
Git commit:          5ceb3ada
Built:               Wed, Feb 19, 2025 9:24 PM
OS/Arch:             linux/x86_64
Profile:             default
Server type:         server
Pydantic version:    2.9.2

Additional context

No response