404 Not Found from bug reporting site

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The OpenCV homepage includes a link titled "Report a bug" to http://code.opencv.org/projects/OpenCV/wiki/WikiStart#Creating-new-tickets. I get the HTTP '404 Not Found' error from that URL, as I do from http://code.opencv.org/projects/OpenCV/wiki/WikiStart and from http://code.opencv.org/ (which redirects to http://code.opencv.org/projects/opencv/wiki)

Where should we report suspected bugs?