external build commit status not visible in 8.4.4

Hi, I would like to report what I think is a regression in v8.4.4. I couldn't find a similar issue already, but if this was in any way already reported, please excuse the noise.

I am using the excellent gitlab jenkins plugin, coupled to project's web-hooks to build commits and populate build statuses for commits. This worked fine up to v8.4.3. Apparently since v8.4.4, I can't see any new build status. The old ones generated in v8.4.3 are still visible to users, but no new one is populated. I can seem to fine any error in the logs (maybe some hint on what to look for would be helpful), on neither sides : my jenkins server or our gitlab server.

I can only assume the changes related to this new feature : Add a Project setting to allow guests to view build logs (defaults to true) (see https://gitlab.com/gitlab-org/gitlab-ce/blob/9c31cc6ff61f1b5a7508232a0534ee312d42bcb9/CHANGELOG) had these side effects. I don't know whether my jenkins user is not capable to push the build statuses, or if no user can see them.

Any idea on what is going on?