When creating or updating a node inside a workspace (core workspaces module), no alias is generated for the node. That's because of some condition in core itself as well as pathauto, which prevent generating an alias if the saved revision is not the default revision, which when saving inside workspaces can never actually be true.
On Vanilla Drupal 9
Expected result: Url alias changes to /test/hello-world
Actual result: Url alias doesn’t change
Allow other modules to alter the value used for the entity url generation inside EntityBase::toUrl() via an event. The event subscriber, which will allow update of aliases inside workspaces, will live in the workspaces module.
Closed: duplicate
11.0 🔥
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Pathauto generation works fine with the small patch from #3283769-8: Allow path generation inside of a workspace → , so I'm closing this one as a duplicate.