CaloRec: Add protection against bad cluster links in ESD.
Cluster links are screwed up in ESDs due to changes in output algorithm sequencing; see ATR-19778. For now, add some protection to avoid a crash in that case, but this isn't a real fix.
Cluster links are screwed up in ESDs due to changes in output algorithm sequencing; see ATR-19778. For now, add some protection to avoid a crash in that case, but this isn't a real fix.