This morning we discovered a serious bug inside the supervisor for Habitat 0.10.1. The bug is that top-level variables defined in a
default.toml cannot be overridden. We are working on a new release for this and we'll post a release announcement in here when this has been fixed.
On behalf of the Habitat team, I'm sorry that this bug escaped, and we're improving our internal testing processes to ensure that bugs of this type have a lower probability of escaping.