Geoffrey Ferrari <geoffrey.ferrari@oriel.oxon.org> writes:

Hi Geoffrey,

> Thanks Michael. On further investigation, I've found that this minimal
> code (after starting with emacs -Q) produces the same unexpected
> error:
>
> (condition-case nil
> (emacs-repository-get-branch nil)
>   (error nil))

You're right. After setting `default-directory' and `source-directory'
to "/not/existing" I see the same error. `call-process' seems to break
the `condition-case' jail.

> I don't think I can investigate further as condition-case is not a
> lisp function.

I've hardened trampver.el, committed to the master branch. Could you,
pls, check?

> Kind regards
>
> Geoff

Best regards, Michael.