web-mode's fill-paragraph behavior test case - before fill-paragraph

gistfile1.twig

{#
    This is a test comment. Imagine I was writing some lengthy explanation
    of an odd subtlety in this template's behavior, and at some point, I
    reached a point where I wanted to refill the paragraph, so I pressed
    M-q. web-mode will mangle the following code badly.
#}
{% for diff in commit.diffs %}
<div class="source-view">
    <div class="source-header">
        <div class="meta"><a name="{{ loop.index }}">{{ diff.file }}</div>
    </div>