F1 opens wrong documentation page

1. Open tests\manual\qml\testprojects\plugins\imports\MyPlugin\MyComponent.qml from Creator's repository in Design mode.
2. In the Navigator, select the textItem.
3. In the Navigator, select the Rectangle.
4. Press F1.
   The documentation page "Text QML Type" will be opened.

Instead, the page "Rectangle QML Type" should be opened because a Rectangle is selected.