Wiki links are broken when I'm previewing an edit

For instance, linking to Modding on my FrEee repo links to https://bitbucket.org/ekolis/freee/src/4423ced2b926173af4ef12c81169284e33c4621d/Modding which is an invalid link; it should be https://bitbucket.org/ekolis/freee/wiki/Modding.