fedora-review -b 613001 cannot find URLs. This is because in url_bug.py:

{{{
hrefs = map(lambda l: l['href'], links)
}}}

will generate a !KeyError if a link does not have an href attribute. Two possible solutions are:

{{{
hrefs = map(lambda l: l['href'] if l.get('href') else '', links)
}}}
or
{{{
hrefs = [l.get('href') for l in links if l.get('href')]
}}}

We can't just use l.get('href') because it will return None if there is no 'href' attribute, and that will generate an exception when passed to encode() later.