block.super does not render with reverse errors in super block

[schrinaw@…]

Simple example:
#parent.html
{% block parent %}
{% url "no reverse match" %} <- no reverse found, error
{% endblock parent %}

#child.html
{% extends "parent.html" %}
{% block parent %}
{{block.super}}
some other stuff
{% endblock parent %}

Rendering child.html, the block.super part does not appear. It fails "silently" rather than throwing the "no reverse match" error. Not sure if this is the intended behavior (why??), but it has caused me an hour of frustrating template debugging in two cases now. It was only when I moved the whole parent block into the child template (ie copy/paste) that the "no reverse match" error surfaced. I thought I had a problem with template inheritance the whole time.

[Marc Tamlyn]

I agree that this is not somewhere that we should be swallowing errors.

[Baptiste Mispelon]

Is this related to #20745?

[Ramiro Morales]

Could be. In any case this issue is already fixed in 1.6.x and master.