Bug Report for implement-prefix-tree

[mendozajp]

Bug Report for https://neetcode.io/problems/implement-prefix-tree

Forgive me if this is just a trick of the environment I'm too slow to understand, but I noticed when adding typing and optional variables in python for the TrieNode class, data from the previous test cases is not wiped away.
resulting in failing unit tests

However when removing said args I have no problems.

I never actually used those optional args as well, I had them there thinking I would, but never actually did, so some residual global being set doesnt seem to be the case. Somehow they were populating a new TrieNode object with data from previous test cases.