Tonich, could you describe the problem you are trying to fix?

It looks like you are adding () after the is_view_ok statement.
I see the same used in:

  issue.index.html:  {% if context.is_view_ok %}

although most of the uses are the ()'ed form.

I don't know jinja, but in tal you don't need the ()'s
in some of it's evaluation modes. I don't know if jinja
has something similar or if that is the only way it will
work.

So some explanation here would be helpful.

We have had people try the jinja template and found it lacking,
so I would like to improve it.

Thanks.

-- rouilj