CoreDump when reading emptu spectrum attribute
% TANGO_HOST=aculab-db.esrf.fr:10000 ./mj att read runningservers dev tango/admin/l-acutest6
terminate called after throwing an instance of 'Tango::WrongData'
zsh: IOT instruction (core dumped) TANGO_HOST=aculab-db.esrf.fr:10000 ./mj att read runningservers dev