It failed, but not in the way I expected:

```
Failures:

  1) #any_instance setting a message expectation does not modify the return value of stubs
     Failure/Error: expect(object.foo).to eq(3)
       (#<Object:0x0000010328a600>).foo(any args)
           expected: 2 times with any arguments
           received: 3 times with any arguments
     # ./spec/rspec/mocks/any_instance_spec.rb:434:in `block (3 levels) in <module:Mocks>'
     # /Users/sam/dev/rspec/rspec-dev/repos/rspec-core/exe/rspec:4:in `<top (required)>'

```

the extra call in notify is causing the problem here