Partially uploaded MDC events

@max.trevor reports a "partially uploaded" PyCBC event from the MDC:

https://gracedb-playground.ligo.org/events/G967313/view/

This is a PyCBC Live full-bandwidth event resulting from the SNR optimization of the initial discovery event (G967295). If we expand the full event log, we can see that the search uploaded the initial LIGOLW data, and nothing else. The event is missing the EM-bright and p_astro JSON files, the diagnostic plots, and various comments that explain the event in a human-friendly way. Compare for example with the full event log of

https://gracedb-playground.ligo.org/events/G998023/view/

Unfortunately, we discovered G967313 too late, and the error log has now been rotated away to diagnose what exactly happened from the search side.