A recent change (link to Google Cache as d.p.org seems to be down right now) to the way Plone calculates the review list for the full_review_list view. In order to support LinguaPlone better, WorkflowTool now explicitly adds a Language='all' to the query used to retrieve a worklist, whereas before only results in the user's current language were shown. The code is in Products.CMFPlone.WorkflowTool#getWorklistsResults().
Is it possible to override this new behaviour to obtain the old behaviour?