I've also reported bug 1362025 on the Back button being history-based at all. If System Settings is constructing a history of where it's been, and this bug is caused by adding multiple history entries for the same screen, fixing that bug will fix this bug automatically.
I've also reported bug 1362025 on the Back button being history-based at all. If System Settings is constructing a history of where it's been, and this bug is caused by adding multiple history entries for the same screen, fixing that bug will fix this bug automatically.