[Bug]: editing a post to remove the URL does not federate

[Die4Ever]

Requirements

• Is this a bug report? For questions or discussions use https://lemmy.ml/c/lemmy_support
• Did you check to see if this issue already exists?
• Is this only a single bug? Do not put multiple bugs in one issue.
• Is this a backend issue? Use the lemmy-ui repo for UI / frontend issues.

Summary

When you edit a post to remove the URL (like if you don't want to post to be hidden due to an older post with the same URL), the URL is only removed on your home instance but not the community's instance. Edits to the body text do federate properly, I even did both in the same edit operation.

Steps to Reproduce

1. Make post with a URL to remote community
2. Edit post to remove URL
3. Load up remote instance and see the URL is still there

Technical Details

Example

https://programming.dev/post/8548638

https://sh.itjust.works/post/12709778

You can see an edit was able to change the URL but not remove the URL. The home instance shows the URL removed.

Version

0.19.1, 0.18.5

Lemmy Instance URL

programming.dev, sh.itjust.works

[Nutomic]

#4378 has a test case for this.