This should elegantly address the issues described in this comment:
https://github.com/meteor/meteor/pull/8327#issuecomment-280881830
I toyed with the possibility of turning package variables (both imports
from other packages and intercepted "global" variable assignments) into
properties on a shared namespace object, but that would have been a major
breaking change for existing package code, because it would have required
automatically rewriting variable references in package modules.
41e9ee857e