Inconsistent behaviour between enums returned from QAbstractItemModel.data() and QModelIndex.data()

import enum
from typing import Any, Optional, Union
from PySide6 import QtCore

class MyEnum(enum.Enum):
    CAR = 0
    HORSE = 1
    BIKE = 2

class VehiclesAndDaysModel(QtCore.QAbstractTableModel):
    def __init__(self, parent: Optional[QtCore.QObject] = None) -> None:
        super().__init__(parent=parent)
        self._dataModel = [
            MyEnum.BIKE,
            MyEnum.CAR,
            MyEnum.CAR,
            MyEnum.BIKE,
            MyEnum.HORSE,
        ]
    def columnCount(
        self,
        parent: Union[
            QtCore.QModelIndex, QtCore.QPersistentModelIndex
        ] = QtCore.QModelIndex(),
    ) -> int:
        return 1
    def rowCount(
        self,
        parent: Union[
            QtCore.QModelIndex, QtCore.QPersistentModelIndex
        ] = QtCore.QModelIndex(),
    ) -> int:
        return len(self._dataModel)
    def data(
        self,
        index: Union[QtCore.QModelIndex, QtCore.QPersistentModelIndex],
        role: int = QtCore.Qt.ItemDataRole.DisplayRole,
    ) -> Any:
        return self._dataModel[index.row()]

testModel = VehiclesAndDaysModel()
testIndex = testModel.index(2, 0)
testData = testModel.data(testIndex)
print(type(testData))
print(type(testIndex.data()))

<enum 'MyEnum'>
<class 'int'>