This allows to clear the flag when for some reason it wasn't cleared
immediately after installing updates.
FixesQubesOS/qubes-issues#1511
(cherry picked from commit 6921400a7a)
Unfortunate side effect (to be solved at Qubes Manager side): it will
block Qubes Manager until all updates are installed (not only updater
launched).
FixesQubesOS/qubes-issues#1511
(cherry picked from commit cb6a52a652)
This would override user changes to the template. Previous method
(Obsoletes: rpm header) doesn't work now, so add explicit exclude list
as yum option
Fixesqubesos/qubes-issues#996
This can be useful for actions like "downgrade", "reinstall" etc.
Needs additional testing if whole distribution upgrade using
"distro-sync" action will work as expected.
Marek Marczykowski-Górecki