Avoid repeated freeze calls

[cuttlefishi]

Issue: when we restart the app, there will be a session set to CLOSE. Another session will continue with freeze call which is a repeat. This will cause the following replacement transaction error:

ERROR: Returned error: replacement transaction underpriced
NEW ERROR: Returned error: replacement transaction underpriced

Proper behavior: When the duplicate session exists, and the session resumes, freeze call should not be repeated.