Thank you for your effort, Dave. I tried "snippetting" from my code base, but the output was consistent (the same as your snippet), when not in its own authentic context. It seemed weird to me, I was pretty sure, that I was looking on the right spot, but now I found out, that it wasn't true. Sorry for this distractions from my side, this was my fault, I had $context variable on other place, where $context_desc should be, and line I pasted, was not the right one. We can "close" (or completely delete, as it probably won't be useful for anybody) this node.