Fixed -- Doc'd that template vars created outside a block can't be used in it.
@@ -407,6 +407,13 @@ Here are some tips for working with inheritance:
not be automatically escaped (see the `next section`_), since it was
already escaped, if necessary, in the parent template.
+* Variables created outside of a :ttag:`{% block %}<block>` using the template
+ tag ``as`` syntax can't be used inside the block. For example, this template
+ doesn't render anything::
+
+ {% trans "Title" as title %}
+ {% block content %}{{ title }}{% endblock %}
+
* For extra readability, you can optionally give a *name* to your
``{% endblock %}`` tag. For example::
