Almost backout afcd46716d6a which breaks _select_best raising an ambiguity exception in debug mode.
The problem is, before afcd4, *tests* ran in debug mode and we want
this (e.g. we want to show, rather than swallow, select ambigüities).
We juste replace the bogus __init__(vreg.config) by __init__(True), which is
practically equivalent and also much more clear.
{% extends "basic/layout.html" %}
{% block header %}
<div class="header">
<a href="http://www.cubicweb.org">
<img alt="cubicweb logo" src="{{ pathto('_static/cubicweb.png', 1) }}"/>
</a>
</div>
{% endblock %}
{# puts the sidebar into "sidebar1" block i.e. before the document body #}
{% block sidebar1 %}{{ sidebar() }}{% endblock %}
{% block sidebar2 %}{% endblock %}