In a follow-up to the B-fare question. I was looking at some upcoming domestic travel I have, which was originally a B fare, but got upgraded at the time of reservation to a ZE.

Now, EQM is supposed to be based on the purchased fare, so I should get 150%, as I have many times in the past. However, I just noticed that CO shows 100% EQM for ZE segment. Is that just a bug?