Teodor Zlatanov <tzz@lifelogs.com> writes:

> And *merge* errors out and contains:
>
> diff: /tmp/emergeA18665uax: No such file or directory
> diff: /tmp/emergeB18665gkA: No such file or directory

This bug still seems to be present in Emacs 28.

Steps to reproduce:

Create two files:

/ssh:other-host:/tmp/foo1
/ssh:other-host:/tmp/foo2
M-x emerge-files RET /ssh:other-host:/tmp/foo1 RET /ssh:other-host:/tmp/foo2 RET

Result: