Currently the ComponentPluginManager lacks the calls to define the alter hook for plugin managers making it so other modules can't alter the definitions for component plugins. It is also missing the call to set the cache backend.
Add the alter hook and set the cache backend in the ComponentPluginManager constructor.
Fixed
10.1 ✨
Last updated
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
This was discussed in core's MR issue. Re-assigning Project to Drupal core and closing as Fixed.
Automatically closed - issue fixed for 2 weeks with no activity.