Previously, the check was in place only when session token was missing.
Format validator checks are applied only to fully-prepared object, so
this lead to the following situation:
1. Object is put locally with malformed token, because there are no
checks.
2. Object cannot be replicated, because the token is malformed.
This is now fixed and token check is done before any payload receival.
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
