I wonder if there's a way to "un-resolve" this, as it's a nice marker. But, like glass towers marking the strongholds in ancient versions (like pre-alpha or indev, I think)... I think we're out of luck.
Damn, I'm sorry to see this "bug" go, these are actually USEFUL — they mark mineshaft central chunks! Seriously... dig straight down from one of these air bubbles, and you'll find a mineshaft. Every time.
I wonder if there's a way to "un-resolve" this, as it's a nice marker. But, like glass towers marking the strongholds in ancient versions (like pre-alpha or indev, I think)... I think we're out of luck.