Vehicleid for existing users not showing up

When accessing the forum, a GET request to /community/api/v2/community/posts/recent is done to receive information about posts and comments. There are 3 existing posts made by the 3 default users, however there is no information about their vehicles.

Which is honestly not a big deal, you can simply create two users, post something and use their vehicle guids for the challenges. However, I think it would be nice to already have some pre-built vehicleids so the challenge progress feels more natural. I think the vehicles are already created because there is mechanic reports for the default users, so I'm not sure if this is the expected behaviour.

Both last stable and development versions have this behaviour. Environment: Macbook M1, macOS Monterey 12.4, Docker 4.7.1 (77678).

Start by reproducing the GET request to /community/api/v2/community/posts/recent and inspect the response for posts made by the three default users. Done means those existing users' posts include their vehicle IDs or GUIDs, with the behavior verified in both stable and development versions.