verifyNeverInvoked retuns false positive results

When I use this method in this way
```
$WS->verifyNeverInvoked('callFactory', ['0', 'myCalledMethod', [
'firstid' => 123,
'secondId' => 123,
'thirdId' => 124567,
'data' => [
'value' => 456
],
]]);
```
The test appeares as OK (green tick) even if the method «myCalledMethod» was called before with the same arguments

Start with the verifyNeverInvoked entry point and reproduce the shown call using the same arguments. Trace how prior invocations are compared; done means an earlier identical call to myCalledMethod is reported as a failure rather than passing.

索引モデルが issue の本文から書いたものです。