Currently, if you select Date-descending sort in Forum settings, they actually sort by timestamp of most recent comment (or something like that). The result is that if you have a fair number of posts with no comments, the sort order appears to be random.
Actual date sort can be achieved by changing function _forum_get_topic_order() in forum.module.
Change l.last_comment_timestamp to n.created, so the final version looks like this:
case 1:
return array('field' => 'n.created', 'sort' => 'desc');
break;
case 2:
return array('field' => 'n.created', 'sort' => 'asc');
break;Otherwise, an even better idea would be to created-date sort option to the other sort options.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Forum is approved for removal. See #1898812: [policy] Deprecate forum module for removal in Drupal 11 →
This is now Postponed. The status is set according to two policies. The Remove a core extension and move it to a contributed project → and the Extensions approved for removal → policies.
It will be moved to the contributed extension → once the Drupal 11 branch is open.
