Description of problem:
While markdown links in descriptions generally work, if the URL contains colon, the link changes to empty string.
Steps to Reproduce:
1. Put a link with colon in the description (using the markdown syntax)
such as [Miro](https://fedoraproject.org/wiki/User:Churchyard)
Additional info: see http://copr.fedoraproject.org/coprs/churchyard/chromium-russianfedora/ for real life example
(I've tested by experimenting, that the colon is the thing that breaks the link, other characters might do the same thing.)
This is problem of python-markdown.
>>> import markdown
>>> md = markdown.Markdown(safe_mode='replace',
... html_replacement_text='--RAW HTML NOT ALLOWED--')
>>> text = "[Miro](https://fedoraproject.org/wiki/User:Churchyard)"
rpm -q python-markdown
Upstream says this behavior is intentional: See https://github.com/waylan/Python-Markdown/issues/220