F1 jumps to last shown position of doc page independent of context

When I press F1 at a call to some function, e.g QString::arg(), Creator opens the associated documentation page and scrolls to the position where this function is explained. I can then scroll to a different position of the page.
If I close the help pane and press F1 again at the same position in the editor, Creator shows me the position of the doc page where I scrolled to, not the position where QString::arg() is explained. After I opened a different doc page, e. g. the one about QList, pressing F1 for the next time will lead me to the right position.