partial fix for issue #4, where NullDB is not nullifying contextually, only globally, in RSpec2
partial fix for issue #4, where NullDB is not nullifying contextually, only globally, in RSpec2

envato/nulldb,voxik/nulldb,blaet/nulldb,Sirupsen/nulldb,avdi/nulldb,nulldb/nulldb,theironyard/nulldb,nickahoy/nulldb