fixes issues pointed out by Bob and by the verifier, such as * timetags were missing when a cache response was used for info with subset * when an ID is not recognized, a 500 occurred, not a 400.
fixes issues pointed out by Bob and by the verifier, such as * timetags were missing when a cache response was used for info with subset * when an ID is not recognized, a 500 occurred, not a 400.