Minimum size of toolbar with one visible action is too high

This problem exists since Qt 4. Qt 3 was ok.

I have a toolbar with one visible button/action and some invisible separators or invisible buttons/actions. The minimum size is too high, because the size of the extension is added. I think, that the space for the extension should only be added, when more than one item is visible.

see QToolBarLayout::updateGeomArray

This condition:

if (items.count() > 1)

  rpick(o, that->minSize) += spacing + extensionExtent;

Should be:

if (count > 1)

 ...

count is the number of visible items. The number of invisible items doesn't matter.