Generosity missing tooltip for Smite

When support Smite with Generosity gem, the 'x% increased aura area of effect' from the quality does not get added to the Smite's description unlike with other aura skills. It does increased the aoe of smite but not mentioned in the tooltip.

This is probable because the aura section of the skill is a secondary effect not the main attack, thus is not shown on the main attack tooltip as it is not affecting it.