Marble: Fix FlyTo functionality in Marble
completed by: Mikhail Ivchenko
mentors: Dennis Nienhüser, shentey, Sanjiban Bairagya, Torsten Rahn
Currently the Tour feature doesn't do anything if "Play" is pressed. Please find a bug fix.
Also the Spinbox for the wait time lacks a unit. Please add "s" as a suffix for seconds.
The fix should also be backported to the stable version.