Fixed issues found by PVS-Studio

[stilettk]

I have performed a quick check with PVS-Studio - static analyzer for C, C++, C#, and Java code.

Found two issues, listed below. Other issues were either not critical, false positive or already known (e.g. disabled with #pragma).

V3038 The argument was passed to method several times. It is possible that other argument should be passed instead.

This seems like a typo: state5 was passed instead of state6:

ExpectedSessionState6(m_logger, Id, state1, state2, state3, state4, state5, state5, m_state);

V3114 IDisposable object 'store' is not disposed before method returns.

The store was not neither disposed nor closed (it implements IDisposable since .NET Framework 4.6)