Timeline doesn't backpaginate on opening room if there are invisible events

[ara4n]

Steps to reproduce

1. Enable event cache
2. Open a room which has had some invisible (or collapsed) events in it, in an uncached room
3. Discover that the timeline doesn't autopaginate to fill the visible space
4. Have to explicitly overscroll the timeline to trigger a pagination to get it to load more history.

304890F5-F4A8-42A1-90E1-AE111962F09A.mp4

Outcome

What did you expect?

Room history should load automatically to fill the visible page

What happened instead?

Room history gave up loading after ~20 msgs, despite not having filled the visible page.

Application version

848

Will you send logs?

Yes

[Hywan]

May be fixed by matrix-org/matrix-rust-sdk#4724

[Hywan]

Got hit by this bug before, it's not longer the case, I believe it is solved. Closing this issue.