[Bugfix] CacheLoginThrottleService->isThrottled

When login fails on too many login attempts, it's not possible to check it because `isThrottled()` is passing different identity into `countThrottle()` method.
Now it will be the same and it should fix #387 and #392
Can you please remove `.idea` from .gitignore.
It's better to put this into your global git config instead.