First of all, sorry about my english.
Today playing in jungle with the Dark Harvest rune I noticed that, after doing Blue Bff and Wolfes I just noticed that I had 8 minion kills... after keep doing jungle I just noticed that the Dark Harvest Souls were counted as Minion Kills.
It's not a big deal, but it can make think that someone is more fed than he is becuse it looks like he/she have more minions than in reality have.
I couldn't try if the bug just happens in jungle or in lane too.
Hope it helps!