✨ Null hashes don't match between Python and C++

[lmarie79]

Feature Request

Description
There is a discrepancy between null hashes in the C and Python code. A hash of null results in H() in one case but H(|), a hash of a delimiter, in the other.

Proposed Solution
Per @benaloh - a null hash should just be H()

[keithrfung]

We are waiting for an individual to confirm the location of this issue. This is marked as question due to this.

[keithrfung]

This doesn't make sense. The code reads this should result in a hash of H(|null|) in python. We definitely need follow up.
https://github.com/microsoft/electionguard-python/blob/e35b68dc3175243ffaf872e9a0ea56c5b8a05830/src/electionguard/hash.py#L88-L93

[lmarie79]

@rc-ms considering whether to push to 2.0 or closing all together

[benaloh]

Consistency amongst implementations and clarity are most important. A null hash being H() is best, but this can be deferred until 2.0 as long as re eliminate inconsistencies and ambiguities now.