bug#43218: EWW handles default answer incorrectly when changing a select

[Stefan Monnier]

> Right.  What I'm wondering is whether we could make the text properties
> in the candidates survive the completion process is that variable is
> non-nil.

While there might be some text-properties that should be stripped
(e.g. the `mouse-face` when copying text from *Completions* to the
minibuffer), I don't think there's any particular need to remove the
text-properties, no.  It probably gets removed as a side effect of
something else (e.g. of going through `try-completion`) so it probably
"just" needs more work to actively *preserve* the text-properties.


        Stefan