[Users] How do I disable autocompletion in the file selector?

[Paul]

On Mon, 14 Jan 2019 09:35:56 +0100
Tristan Miller <psychonaut at nothingisreal.com> wrote: 

> All of them, as far as I can tell.  For example, the behaviour
> occurs with the "Select file" dialogs that appear when "Attach
> file" or "Insert file" are invoked from the Compose window.

That's the GTK+ GtkFileChooserDialog. The typeahead feature is
hardcoded in GTK, afaik, and cannot be disabled.

with regards

Paul