The package update-manager/xenial-proposed 1:16.04.17 fixes the bug for me as well.
enabled -proposed and pulled in those files via synaptic, leaving the other packages as is. ran update-manager and changelogs show properly again on those packages.
The package update- manager/ xenial- proposed 1:16.04.17 fixes the bug for me as well.
enabled -proposed and pulled in those files via synaptic, leaving the other packages as is. ran update-manager and changelogs show properly again on those packages.