1175818 - Fix failure on Errata with missing "sum"

https://bugzilla.redhat.com/show_bug.cgi?id=1175818
Merge branch '1175818' into 2.4-testing
Merge branch '2.4-testing' into 2.5-testing
Merge branch '2.5-testing' into 2.5-dev
Merge branch '2.5-dev' into 2.6-dev