Steps to reproduce the problem

1. Mastodon receives an Update(Article)

Expected behaviour

Mastodon should update the status with the new article summary

Actual behaviour

The status remained unchanged.

Detailed description

25/9/25

Last night ActivityPub.Space pulled in a report that as:Update activities to as:Article objects are not handled by Mastodon (as sent by WP). At the time @pfefferle and I were not sure whether this was WP or Mastodon, but I have been able to independently verify that when NodeBB sends an update, it is federated out but Mastodon does not update the status.

1/10/25

@pfefferle is confirming.

I now have a nice proof of the issue
published an Article with several follow up Updates
and the Article was not updated
I then changed the object type of that Article to Note and sent another update and that worked

At this time we are uncertain whether this applies only to Articles, or all non-Notes.

Mastodon instance

No response

Mastodon version

v4.5.0-nightly.2025-10-01

Technical details

No response