nvim rendering issue on save sometimes

[Olical]

We SOMETIMES see an odd rendering issue when writing files in Conjure's repo. The screen sort of jumps up by one line and it's hard to get nvim to redraw it, <c-l> doesn't seem to help. Maybe redraw! would? I think that does more.

@russtoku has also seen this, so it's not just me although I think I've only ever seen it on my laptop. I have not seen it (as far as I can remember) on my much more powerful and bigger screened desktop. Both of them run the same dotfiles, nvim config and Linux distro.

I wonder if it's potentially a race condition since I only see it on my slower laptop CPU? I have tried raising the font size, shrinking the window and using lots of splits on my desktop but it never does it. I think I saw it mostly with splits open on my laptop.

If anyone can reliably reproduce this or has similar weirdness around "fast machine good, slow machine bad", please let me know!