A recent sparql-specific rules update disallows some ASK queries. Very likely some DESCRIBEs would also be disallowed. Modify rules to specifically catch and enable ASK and DESCRIBE.
DESCRIBE is being used by some RDBMS' and might be on the queue for the next SQL standard. ASK doesn't appear to be in the radar.
A recent sparql-specific rules update disallows some ASK queries. Very likely some DESCRIBEs would also be disallowed. Modify rules to specifically catch and enable ASK and DESCRIBE.
DESCRIBE is being used by some RDBMS' and might be on the queue for the next SQL standard. ASK doesn't appear to be in the radar.