Sync/update of errata from Amazon Linux fails due to unknown datetime format
I try to sync Amazon Linux 2 repositories which contain Errata but fails when trying to update the errata, everything else works fine. Source for repositores are created by using a Amazon Linux 2 installation, reposync to mirror the basic repository and then modifyrepo to add the updateinfo.xml from yum cache directory.
The error message is "Fail to update the existing erratum ALAS2-2018-939."
Katello version is 3.12 and Pulp is 2.19.1. The old and new version of the Errata file is attached, I see changes in it but not for the Errata mentioned in the error message.