Comment 7 for bug 1365451

I'm not sure exactly what the status of 0.91.x is, but I get the impression that the changing of default units has been disabled in it. If that is so, then the bug will not be reproducible. In that case there is no point in applying the patch for the bug. The patch executes only if the routine onDocUnitChange executes and I gather that this routine has been disabled by Johan.
       Somewhat off the record, it is imperative that this particular routine needs to be re-enabled in trunk as soon as possible, because we will not be able to fix, or even evaluate, any of the remaining issues associated with document units until the code is returned back to normal in trunk.