Issue node gets unpublished in case of a cross-post conflict

Problem

1. When commenting on an issue
2. And someone else commented + changed issue properties while I'm commenting
3. And if I review the conflicting changes + submit the comment form again
4. Then the issue node gets unpublished.

Note: I have d.o site admin permissions, possibly this bug is limited to users that are able to change the publishing status of nodes.

Whenever this happens, I have to manually edit the issue node and publish it again.

Examples

• #1512424-50: Add a LanguageInterface, and property setters/getters to Language class