This was not really necessary as the current location in the tree can be recursively passed down.
One advantage of removing this reference is that a tree can new be dumped easier (using pickle or similar) and the scan tree therefore be compared between different runs.
This was not really necessary as the current location in the tree can be recursively passed down. One advantage of removing this reference is that a tree can new be dumped easier (using pickle or similar) and the scan tree therefore be compared between different runs.