In elastic/kibana#82273 the issue was raised that units are set on a group object: https://github.com/elastic/integrations/blob/master/packages/system/data_stream/fsstat/fields/fields.yml#L15-L16

First, I think this should not happen and we should fix the package. @fearful-symmetry I guess this falls on your plate?

Second, we should have a discussion if we should validate this also in the package spec?  @mtojek @ycombinator

Last, to support also older packages, do we need a workaround in Kibana (@Zacqary )?