This ~regression was introduced by the (supposed) ~"bug"fix for https://gitlab.com/meltano/meltano/-/issues/2352 in https://gitlab.com/meltano/meltano/-/merge_requests/1873 and released in [v1.50.0](https://meltano.com/blog/2020/09/17/now-available-meltano-v1-50-0/), because I (embarrassingly) only wrote unit tests, not integration tests, to verify the correct behavior of the `select_filter` extra (and the `--select` option which uses it). I will not make the same mistake (as often) again.