Incremental update not working

@hlawatschek interesting. Why does debian errata work in orcharhino when the last official statement was that there is no final release date for it on the horizon (see Fixes #25978 - Debian Errata support by m-bucher · Pull Request #7961 · Katello/katello · GitHub and Debian Errata - #20 by martux69 ).
And why incremental updates work in orcharhino and not in the official foreman version? As far as I understand orcharhino is a branch of foreman?