System.ArgumentNullException with ASP.NET Session Management

From https://forums.couchbase.com/t/argumentnullexception-in-sessionstateprovider/7406

exception : "System.Web.HttpException (0x80004005): Exception of type 'System.Web.HttpException' was thrown. ---> System.ArgumentNullException: Buffer cannot be null. NEWLINETOKEN Parameter name: buffer NEWLINETOKEN at System.IO.MemoryStream..ctor(Byte[] buffer, Boolean writable) NEWLINETOKEN at System.IO.MemoryStream..ctor(Byte[] buffer) NEWLINETOKEN at Couchbase.AspNet.SessionState.CouchbaseSessionStateProvider.SessionStateItem.Load(String headerPrefix, String dataPrefix, IBucket bucket, String id, Boolean metaOnly) NEWLINETOKEN at Couchbase.AspNet.SessionState.CouchbaseSessionStateProvider.SessionStateItem.Load(IBucket bucket, String id, Boolean metaOnly) NEWLINETOKEN at Couchbase.AspNet.SessionState.CouchbaseSessionStateProvider.GetSessionStoreItem(IBucket bucket, HttpContext context, Boolean acquireLock, String id, Boolean& locked, TimeSpan& lockAge, Object& lockId, SessionStateActions& actions) NEWLINETOKEN at Couchbase.AspNet.SessionState.CouchbaseSessionStateProvider.GetItemExclusive(HttpContext context, String id, Boolean& locked, TimeSpan& lockAge, Object& lockId, SessionStateActions& actions) NEWLINETOKEN at System.Web.SessionState.SessionStateModule.GetSessionStateItem() NEWLINETOKEN at System.Web.SessionState.SessionStateModule.PollLockedSessionCallback(Object state) NEWLINETOKEN at System.Web.HttpAsyncResult.End() NEWLINETOKEN at System.Web.SessionState.SessionStateModule.EndAcquireState(IAsyncResult ar) NEWLINETOKEN at System.Web.HttpApplication.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar)",

This is presumably happening because that Load() function gets the header document and then checks to see if Status == KeyNotFound, but doesn't check to see if it failed for any other reason. Then a scenario where the Get() fails for some other reason happens, thus resulting in a null object being sent into MemoryStream(). Should the header document check to see if the value == null similar to how it checks the session document in the same function? Or at least check value.Success?