fix double escape in html template
    
    content filtered by noJS is safe, jinja should not escape it again,
    fixes https://pagure.io/pagure/issue/2284
    
    same old problem here:
    https://pagure.io/pagure/issue/336
    which is fixed by:
    https://pagure.io/pagure/c/5e64f815
    
    Signed-off-by: Shengjing Zhu <zsj950618@gmail.com></zsj950618@gmail.com>