On Thu, May 31, 2018 at 3:41 PM Tomasz Kłoczko <kloczko.tomasz@gmail.com> wrote:
On 31 May 2018 at 18:40, Matthew Miller <mattdm@fedoraproject.org> wrote:
On Thu, May 31, 2018 at 06:24:49PM +0100, Tomasz Kłoczko wrote:
> >   * Fri May 25 2018 Martin Hatina <mhatina@redhat.com> - 2.7.5-13
> >   - Rebase to dnf from dnf-2-modularity-6 release.
> It is yet another hidden change not listed in above.

Soooo, rather than assuming malice, since the change isn't noted, I'd
guess that somehow the recommends got inadvertently reverted as part of
the rebase.

What I wrote does not base on any assumption or guess.
And not malice but more likely IMO just plain (not intentional) mistake.
Why? Because:
a) To handle all Fedora repos dnf does not need depend on deltarpm. Fedora does not provide delta files at all. Nothing here changed recently. In't it?

Fedora has provided deltarpms in the repositories for many years. However, it only provides two per RPM: a delta from the one shipped at GA and a delta from the most recent one in updates-testing. So if you don't update frequently, you'll likely not see many of them.