timeline doesn't scrolldown after you upload an image

[ara4n]

failing to reproduce, so i think it's a race (or perhaps i was slightly scrolled up when i uploaded the image?) but I could see the first ~40px of the thumbnail after uploading a pic and had to scroll down for the rest.

[ara4n]

I just reproduced it (E2EE room, nothing special going on):

[ara4n]

^ the clipped line at the bottom is actually the top of a screenshot I'd just pasted of a different Eleweb room.

Having scrolled down:

Meanwhile, i am sure i was already scrolled to the bottom of the screen.

[ara4n]

...and I just reproduced it again in a different room (unencrypted this time); again with a PNG screenshot. This time the timeline ended up scrolled up way too high - about 100px before the point where I sent the msg.

a) This could be a good old fashioned classic scrolljump: #8565
b) This could be a race of some kind with the remote echo of the msg I've sent before the image?
c) Good news: it really feels quite reproduceable.

Might try to take a video.

[ara4n]

repro.steps.mov

here's a video perfectly reproducing the problem in the previous comment. I enclose the screenshot used to reproduce...

[ara4n]

if this is an easy way to repro #8565 then perhaps we can finally solve that beast...

[ara4n]

I'm seeing scrolljumps almost every time i send a message now on today's nightly - e.g:

scrolljump.mov

[ara4n]

I think this is fixed currently.

[ara4n]

actually, no, it's still there, just less frequent. makes for a really jarring experience to upload a file, and then not have the timeline show it unless you scroll down :(