The same buffer in different windows loses position

[expipiplus1]

If I have the same file in two windows and I save in one window the other window loses its position.

To reproduce

• vim Foo.hs
• :split
• :w
• Observe that the non-active split has had its position changed to the bottom of the file

Here's it in action: https://asciinema.org/a/7ui2mgim7pmqinjb7fzqbvqdn

[expipiplus1]

It's possible that this, #4 and #7 could be fixed by generating a patch and applying that, instead of replacing the buffer.

[expipiplus1]

According to @krux02 here rhysd/vim-clang-format#24 autoread could be a solution.

[expipiplus1]

This looks like a relevant patch for gofmt fatih/vim-go@99a1732