Should writing metadata during event loop be allowed for MetadataSvc?

[m-fila]

Putting parameters during event loop (algorithm execution) isn't allowed for the old MetaDataHandle:

k4FWCore/k4FWCore/include/k4FWCore/MetaDataHandle.h

Lines 127 to 131 in cc6a28a

	if (m_podio_data_service) {
	if (m_podio_data_service->targetFSMState() == Gaudi::StateMachine::RUNNING) {
	throw GaudiException("MetaDataHandle policy violation", "Put cannot be used during the event loop",
	StatusCode::FAILURE);
	}

For the new MetadataSvc it's possible as this check seems to be missing. Is this an intended feature or an oversight?

[tmadlener]

I would declare it an oversight, as the intended behavior would be to not be able to do this.