anitya.flag.set message topic doesn't contain project

[Zlopez]

The message without project is causing a crash in FMN.

And every message with anitya.flag.set topic is not sending project.

Here is example message: https://apps.fedoraproject.org/datagrepper/id?id=2019-40fd39fb-d282-4254-bc49-d82ac9824e68&is_raw=true&size=extra-large

[Zlopez]

I created a fix for this in FMN - fedora-infra/fmn#306

[abompard]

The PR has been merged in FMN, is this still blocked?

[Zlopez]

The project field is still null (https://apps.fedoraproject.org/datagrepper/v2/id?id=abc9e10a-d070-4f86-8fc4-4cf7a011203b&is_raw=true&size=extra-large), but the FMN fix is in place, so this is no longer blocked

[Zlopez]

Moved the issue to this repository as it's more related to messages, even if the bug will be probably fixed in anitya codebase.