Similar to when you are reach the end or beginning of a document using search, it would be good to have a dialog appear asking if you wanted to continue to the next or previous change from the other end of the document.
Reproducible with LO 4.4.0.0.beta1 (Win 8.1). If I open a document with tracked changes and then put the mouse cursor in the middle of the document and then use arrow right button of the Track Changes toolbar to get to the end of document it only simply stops at the end of the document without asking whether it should continue with the beginning of the document.
Changed to duplicate of 126735 (which is on agenda for design meeting) and closed *** This bug has been marked as a duplicate of bug 126735 ***