Recommend against selection on 0.0 by eemeli · Pull Request #378 · projectfluent/fluent
This PR attempts to conclude the past discussions on selection on non-integral numbers by describing the current behaviour (matching on numerical rather than formatted value), while recommending against authoring messages that include non-integer variant keys.
As far as I know, this is an entirely theoretical concern, and no real-world message exists that has a need for selection on non-integer values.