Subject: bug#34815: 26.1; read-shell-command globally sets comint-input-autoexpand to 'history

From: Eli Zaretskii <[email-masked]>
Date: Mon, 11 Mar 2019 20:41:06 +0200

> From: [email-masked]
> Date: Mon, 11 Mar 2019 11:08:42 -0700
> 
> Calling "shell-command", "async-shell-command", or any other command
> calling "read-shell-command", globally sets the variable
> "comint-input-autoexpand" to 'history. "comint-input-autoexpand" is
> supposed to be a buffer-local variable with a default value of nil, and
> setting it globally can interfere with other shells that use the "!"
> symbol, e.g. the IPython shell.

Does it help to replace setq with setq-local in shell-completion-vars
where it sets the value of comint-input-autoexpand?