Mordekaiser, passive: Spoils of War, Children of the Grave

[GAMEPLAY] Spoils of War triggers on Children of the Grave

I'm not sure if this is intentional or a bug but I'm posting this anyways to get it out there. The Spoil of War gold income passive triggers with nearby stolen champions from Children of the Grave and also gives you additional gold upon consuming a stack. You can barely see it in the first image that I have provided but you can clearly see it in the second image.

This is easily repeatable and it happens every time when the conditions are met. 1st You need a stack of Spoils of War. 2nd You need a Champion soul through Children of the Grave. 3rd You need to attack minions to trigger the Spoils of War with the Soul being the closest ally. Then you will be given two sets of gold.