This chorale prelude is also known as “Ricercar pro Festis Pentecostalibus”. So there's only one day I can upload this in good consciousness... ;-)
The manuscript I based this edition on (Mus.ms. 30196 owned by the Staatsbibliothek zu Berlin) seems to contain some errors (missing voices or just scarcely indicated, some wrong voice leading or erroneous harmonies). I have no printed edition to compare my result with. Besides, by doing so I would probably infringe some copyright law. So I stay as close to the manuscript as possible, but I did correct the errors as I see fit.