Understandable and I do believe IntEnum should default as zero as its the default type most will choose when trying to mimic other languages.

C/C++ has the same problem where the value isn't suppose to matter but as soon as you go across the compiled / interpreted application (libraries and network communication) the value of the enum becomes important. 

I have corrected all my code to have a "fake" value of 0 instead of using enum.auto() as the first value, but it would be nice to not have to use that workaround. Maybe a new class CIntEnum would be acceptable?