I see this bug in Version: 4.3.0.0.alpha0+ Build ID: a14cfd3d77104aee3e3c3d981a135161295197df * Take a long Writer document with more than three pages. * Open Navigator and open and separate the "Navigation" tool. * Select the type "Reminder" in the "Navigation" tool. * Hover the up and down arrows in the "Navigation" tool. They show "Previous page" and "Next page" but should show "Previous Reminder" and "Next Reminder". You can notice the same bug for the other kind of navigations. * Goto the start of the document, set cursor there and click on the "Reminder" icon in the Navigator. * Goto the end of the document, set cursor there and click on the "Reminder" icon in the Navigator. * Set the "Navigation" tool to type "Reminder". * Click on up arrow in the "Navigation" tool. Expected behavior: You are taken to the reminder at the start of the document. Current behavior: You move one page up. This navigation is OK in LO 4.1.3.2, so it is a regression. It was likely introduced when removing the navigation from the scroll bar area.
This has been fixed with http://cgit.freedesktop.org/libreoffice/core/commit/?id=c6abb084ef6b1f86734395058bcafc61458727b4