PyNode throws an exception for motion path handle points

[zewt]

Creating PyNodes for motion path points throws an exception:

# Traceback (most recent call last):
#   File "<maya console>", line 4, in <module>
#   File "C:\Program Files\Autodesk\Maya2020\Python\lib\site-packages\pymel\core\general.py", line 1255, in ls
#     return map(PyNode, res)
#   File "C:\Program Files\Autodesk\Maya2020\Python\lib\site-packages\pymel\core\general.py", line 2456, in __new__
#     pymelType, obj = _getPymelType(argObj, name)
#   File "C:\Program Files\Autodesk\Maya2020\Python\lib\site-packages\pymel\core\general.py", line 134, in _getPymelType
#     pymelType = _getPymelTypeFromObject(obj, name)
#   File "C:\Program Files\Autodesk\Maya2020\Python\lib\site-packages\pymel\core\general.py", line 75, in _getPymelTypeFromObject
#     raise RuntimeError('Could not determine pymel type for object of type %s' % obj.apiTypeStr())
# RuntimeError: Could not determine pymel type for object of type # 

I'm not trying to do anything specific to these nodes, but this causes errors in generic code. For example, if I save the selection to reselect it later:

sel = pm.ls(sl=True)
try:
    ...
finally:
    pm.select(sel, ne=True)

it throws an exception if the user has a motion path point selected.

To reproduce, just put a couple keyframes on a transform, create a motion trail, and select one of the motion trail points in the viewport (or "select motionTrail1Handle.point[0]"), then run pm.ls(sl=True).