RSS Export Feed directs to an Error 404 page if userId or notifyUser values are invalid

[combs-a]

Describe the bug
When you put in an invalid ID into the userId or notifyUser fields for an RSS Export Feed using the XML editor, opening it again afterwards directs to an error 404 page.

To Reproduce
Steps to reproduce the behavior:

1. Go to App Resources -> Create a new/open an RSS Export Feed -> Switch to XML Editor.
2. Change the userId or notifyUser values to an invalid one (one that does not match any Specify User) and save.
3. Navigate away from the RSS Feed and then reopen it.
4. See 404 error.

Expected behavior
There should not be an error 404 page, since this prevents even being able to fix the RSS feed.

Screenshots

27_RSS404.mp4

• OS: Windows 10
• Browser: Firefox
• Specify 7 Version: edge
• Database Name: sdnhm_herps_2_8_24
• Collection name: Herp-PC
• User Name: testuser

Additional context
This is a new issue due to the visual RSS feed; it's likely trying to find a user that doesn't exist for the "Run as user" and "Send completion notification to user" fields, and since it cannot, it goes to an error 404.

If you need to delete the files for testing purposes, you can switch the database to v7.9.5 or do it from the back end.

[emenslin]

Wanted to also note that if you do modify the xml to break the export feed you also cannot create a new one since it is trying to use the already existing one as the base as you can see in the background before the 404 error.

XGxaantbMQ.mp4

[sharadsw]

Unable to reproduce this locally. There's no 404 error for me and only a dismissible error instead and so users can change the value back to a valid one. Can someone verify? @specify/ux-testing
Nevermind, looks like 404 only happens in a production environment