Ensuring mocks using `repeat` are properly scoped to sandboxes
Subclassing and repeat (#280) * added tests for done-ness isolation * added tests for done-ness isolation * turned all tests back on * refined tests, and fixed scoping of repeat
Subclassing and repeat (#280) * added tests for done-ness isolation * added tests for done-ness isolation * turned all tests back on * refined tests, and fixed scoping of repeat