A picture says more than thousand words. Look:
It's just in the preview. When I submit the post, it get Markdown'ed correctly. This has worked fine yesterday. I use this construct very often for the list of "See also" links.
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I made a change yesterday to make the server and the client versions of Markdown behave more similarly in certain cases, but I missed a piece, so in this case I caused the opposite :)
Fixed after the next build.