Unable to load posts: Try Again - doesn't work

### Site

phanpy.social

### Version

2026.02.24.48b2cf7

### Instance

mastodon.social

### Browser

- Chrome 147.0.7727.101 on linux

### Bug description

when scrolling a list timeline, sometimes I get a message at the bottom "Unable to load posts" and a "Try Again" button.

I've never seen the "Try Again" button work. when I click it, the bottom message gets replaced with "The end", even when I know this isn't the end of list (which I can verify in another tab and/or another client).

This behavior is especially annoying when I'm already scrolled pretty far on a list, and it takes a while to scroll back to the same point manually to try loading the list again.

If I watch requests in the Network panel, clicking on "Try Again" does not trigger another fetch attempt.

"Unable to load posts" happens fairly often for me right now, because mastodon.social is currently dealing with a DDOS attack, and it looks like their mitigation causes the server to sometimes return 404 for arbitrary requests. (and in this case it's the `/api/v1/timelines/list/...` request that's returning 404)

### To reproduce

_No response_

### Expected behavior

_No response_

### Other

_No response_