Problems with the tomatillo leaves....

I'm pretty sure that I've found the culprit of the bubbly crud on one of my tomatillo plants.  It's only on one plant, and only on a couple of leaves, but I was worried that it was some kind of virus or something that might spread to my other plants.  Turns out it's my fault -- I've been over-watering these plants.

According to what I've read, it called oedema.  It's caused by too much water in the leaf cells which causes them to explode. Yikes!  Thankfully, sounds like this plant will survive and I'll stop watering it so much.
I'm living and learning.  Every damned day.