$ git clone -n https://src.fedoraproject.org/rpms/delve.git /var/lib/mock/f39-build-2566456-62096/root/chroot_tmpdir/scmroot/delve
Cloning into '/var/lib/mock/f39-build-2566456-62096/root/chroot_tmpdir/scmroot/delve'...
$ git fetch origin 66cbfef487b3ad7ef5b38a1b818ed1a84923586e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/delve
 * [new ref]         66cbfef487b3ad7ef5b38a1b818ed1a84923586e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66cbfef [packit] 1.22.1 upstream release