thumbnail URL isn't copied when crossposting

[bburdette]

Requirements

• This is a bug report, and if not, please post to https://lemmy.ml/c/lemmy_support instead.
• Please check to see if this issue already exists.
• It's a single bug. Do not report multiple bugs in one issue.
• It's a frontend issue, not a backend issue; Otherwise please create an issue on the backend repo instead.

Summary

Lately I've been needing to use thumbnail urls, since youtube thumbnails aren't automatically extracted right now on lemmy.ml.

Here's a post I made today:

When I click the cross post button on that post, I get this:

All the fields are copied except for the thumbnail URL

Steps to Reproduce

1. Make a post with a thumbnail URL
2. Click the crosspost button on that post
3. Note that the thumbnail URL field is empty.

Technical Details

firefox 129

Lemmy Instance Version

UI: 0.19.5 BE: 0.19.6-beta1

Lemmy Instance URL

https://lemmy.ml/