For example I edited this observation field and changed the value “T. cf. aquilinus” to “T. aqulinus group”: https://www.inaturalist.org/observation_fields/8909
Now the graph shows that value as having 0 observations. In addition, I can still sort for observations labelled “T. cf. aquilinus” and find all of them: https://www.inaturalist.org/observations?verifiable=any&place_id=any&field:Toxomerus%20identifiable%20group=T.%20cf.%20aquilinus
I could just manually edit those 4 observations, but if I understand the meaning of “cf.” properly I think I should change the “T. cf. duplicatus” value in the same way and I’m not going to manually change all ~400 of those observations.
I wasn’t sure whether to post this as a feature request or a bug, so feel free to move it, but I figured because it messes up the graph and ability to sort for the observations that it shouldn’t be like this.