error in `aaSubstitutions` for JN.1

@corneliusroemer, I think you have some bug for your `aaSubstitutions` field for JN.1. My understanding is that this is supposed to have spike amino-acid mutations relative to the Wuhan-Hu-1 reference, but it only reports two spike mutations. Things seem correct for both BA.2.86 and JN.1.1, so I think the problem is unique to JN.1. I am looking at this file: https://raw.githubusercontent.com/corneliusroemer/pango-sequences/main/data/pango-consensus-sequences_summary.json