STIX Objects Inconsistent With Published Collection Bundles

[seansica]

The TAXII server currently sources STIX objects from the Workbench 'Get Collection Bundles' endpoint. These objects should match those published to mitre-attack/attack-stix-data, but there are inconsistencies due to post-processing.

Example inconsistency:

• Objects from 'Get Collection Bundles' may contain empty arrays like:

  "x_mitre_data_sources": []

• These empty arrays are stripped during processing before publishing to mitre-attack/attack-stix-data

This issue tracks aligning the Workbench REST API 'Get Collection Bundles' endpoint output with the published STIX data structure.