[bugfix] Fix regression introduced in 9fa2deee

After the patch, wikiquotes fallback to wikipedia has started to
be broken. This should be solved more generally, but until then
this quick fix should do. We could also copy the whole wikipedia
into wikiquotes, but I don't like that solution much.

Change-Id: I8a6f751edd1cd3067c35fa56b3a7be631bb942b6