SDD Agent should re-process data after SDD update #289
Description
When an uploaded semantic data dictionary is replaced/updated, the sdd2rdf agent should re-process any datasets that use that SDD.
Currently the agent is not triggered when the SDD file is changed. This is likely because the MINUS clause in the query in sdd_agent.py (linked here) is still considered to be satisfied (the ?sdd_file uri is the same).