# this codepath is unreachable except by a malicious user spoofing forms,
# or by race conditions (user has hideuser and block rights, loads block form,
# and loses hideuser rights before submission); so need to fail completely
# this codepath is unreachable except by a malicious user spoofing forms,
# or by race conditions (user has hideuser and block rights, loads block form,
# and loses hideuser rights before submission); so need to fail completely