commit 0ee2b5e245d04e8b376b0191e086c40d0b80e87e

Author: Michal Domonkos <mdomonko@redhat.com>

Date:   Thu Jun 14 11:38:07 2018 +0200

    updateinfo: preload pkgSack. BZ 1528608

    This ensures that we honor the skip_if_unavailable option and disable

    unavailable repos when initializing the upinfo object (such as when

    running "yum updateinfo" or "yum check-update --security").

diff --git a/yum/__init__.py b/yum/__init__.py

index 451b2b81..a156a6a6 100644

--- a/yum/__init__.py

+++ b/yum/__init__.py

@@ -1037,6 +1037,7 @@ class YumBase(depsolve.Depsolve):

             self._upinfo = update_md.UpdateMetadata(logger=logger,

                                                     vlogger=vlogger)

+            self.pkgSack  # Preload the sack now, to honor skip_if_unavailable

             for repo in self.repos.listEnabled():

                 if 'updateinfo' not in repo.repoXML.fileTypes():

                     continue