Subject: bug#30743: 26.0.91; ERT "wrong-type-argument" errors

From: Glenn Morris <[email-masked]>
Date: Wed, 07 Mar 2018 16:22:57 -0500

Live System User wrote:

> After running ERT test and choosing various menu selections, I get
> "bwrong-type-argument" errors.
>
> For example:
>
> ERT Results -> Show messages

I can't reproduce this.
Please give a minimal complete example starting from emacs -Q.