Check for empty column name in data importer
Check for empty column name in data importer

Ref: https://github.com/inventree/InvenTree/issues/2940

inventree/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree,SchrodingersGat/InvenTree