{#
  The contents of a voice <select>.

  A fragment rather than markup inside each settings page because the admin
  form, a reader's own settings and the endpoint test all need the same list --
  which is fetched from the speech endpoint rather than stored, since
  reconfiguring the server changes what is on offer.

  `instance_voice` is only passed by the user-facing page, where the first
  option means "whatever the administrator chose"; on the admin page there is
  no such fallback and the empty option means "let the endpoint decide".
#}
{% if instance_voice is defined and instance_voice %}
<option value="">Instance default — {{ instance_voice }}</option>
{% else %}
<option value="">Endpoint default</option>
{% endif %}
{% for voice in voices %}
<option value="{{ voice }}" {{ 'selected' if voice == selected }}>{{ voice }}</option>
{% endfor %}
{% if selected and selected not in voices %}
{# The stored choice is no longer offered -- kept so saving the form does not
   silently reset it to the default. #}
<option value="{{ selected }}" selected>{{ selected }} (not currently offered)</option>
{% endif %}