ovirt-engine rebase does not run master upgrade from master

[Yedidyah Bar David]

Hi all,

Patchset 28 of [1] failed jenkins on some jobs.

Then Roy rebased it on master to patchset 29,
and jenkins passed, after running only some of
the tests. Roy then commented 'ci please build',
which again passed. In practice it should have
failed, and failed for me when running manually -
thus I pushed patchset 30 which fixed the issue.

Why doesn't a rebase causes jenkins to run all
tests, but only some of them?

[1] https://gerrit.ovirt.org/70422

Best,
-- 
Didi