plone/plone.app.multilingual — pull request #43 by fgrcon (2013-03-29 10:40:54+00:00)
Title: plone.app.multilingual/issues/41

So I am not very familiar with the archticture and some more :-)
but at least it works for me.
please check carefully ;-)

+ # fgr: when location query can be a list (for now maybe only in oldstyle collections
+ # but I expect new style collections may get the option of multiple paths as well
+ # in that case no SHARED_NAME needs to be added, because the path criterions are
+ # defined either with languagefolder or language neutral context already.
+ # may be this fix is somewhat dirty ... -fgr