PFlow Updates to Run MET in Derivations
This adds configuration needed to create new decorations that MET reconstruction needs. Some updates are also done to the muon and tau FlowElement association tools to avoid crashes when running from AOD (a workflow not exercised until now).
The new MET reconstruction is available in this MR !56622 (closed) for 22.0 and will then sweep to master. Once the latter happens MET reconstruction will crash in derivations without this MR, so ideally it would go in simultaneously.
Thanks,
Mark