Subject: bug#34834: 26.1; Remote `eshell/mv' and `eshell/cp' on Windows: Opening output file: Invalid argument, c:/home/ ...

From: Eli Zaretskii <[email-masked]>
Date: Fri, 29 Mar 2019 15:37:42 +0300

> From: Michael Albinus <[email-masked]>
> Cc: [email-masked],  [email-masked]
> Date: Fri, 29 Mar 2019 12:16:17 +0100
> 
> > Meanwhile, the same problem happens in Emacs 26, so this is not new.
> 
> Yes. It is not so common to use a relative dir argument for
> expand-file-name, and in the non-Windows case it works properly.

IIUC, it works on Posix platforms by sheer luck, is that right?  IOW,
on Posix platforms, we also don't recognize this is a remote file name
until it's too late, and we only get away because the file name starts
with a slash, and so looks like an absolute file name on Posix
platforms.  is that correct?

And thanks for the detailed description of the traces.