Module has been enabled, settings are fine.
Drupal core version is 8.8.2 and on /robots.txt I get the following:
"LogicException: The controller result claims to be providing relevant cache metadata, but leaked metadata was detected. Please ensure you are not rendering content too early. Returned object class: Drupal\Core\Cache\CacheableResponse. in Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext() (line 154 of /app/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php)."
1.0
Code
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.
I've been using this patch on my production site for a year at this point. The test changes validate that the response doesn't leak the metadata. I'm calling this reviewed.