QLayout spacing inheritance

QLayout documentation states that if no value is explicitly set for spacing, the layout's spacing is inherited from the parent layout, or from the style settings for the parent widget.

This appears to be counter-intuitive, as the child layout's spacing value would likely not depend on its parent.

Users would expect the default value to be applied which would make more sense. Instead, all child layouts will now have to be explicitly modified which seems to be more work than is necessary.