Ingestion with special characters does not work as expected

[saratge]

This issue is related to ge-high-assurance/RITE#20. where special characters were thought to be incorrectly handled by RITE

I have created a simple ingestion package based on turnstile to reproduce the issue:
One of the AGENTS id is "RTCAα"

The ingestion goes through fine, but at the time of returning nodegroup results: "RTCA?" is returned instead of "RTCAα"
I have checked that the ingestion via RITE sends the right CSV string to SemTK:

Steps to reproduce the issue:

1. Ingest using this package:
   turnstile-ingestion-special-chars-issue.zip
2. The special character can be found in : /00_Turnstile/03_data/AGENT_1.csv and /00_Turnstile/03_data/SPECIFICATION_2.csv
3. Execute query nodegroup "ingest_AGENT" against data-graph: http://rack001/do-178c

Screenshots of query nodegroup results containing "RTCA?"