waiting for feedback from the submitter

After some discussions and further investigation by the reporter, the reason for the reported behavior has been identified.
The server, that has been tested with the CTT, collects data from an external data source. Due to architecture, the initial establishment of the communication to and the start of the collection of data from the data source take some time and - depending on the used PublishingInterval - the first PublishResponse after the creation of a Subscription and MonitoredItems may not contain data.
Most of the test scripts in this Conformance Unit are already prepared for this scenario (for example test script 003), but some (like the one mentioned in this mantis report) are not.

Added an initial Publish call to the initialize script to enter the KeepAlive period. As a result, the server has more time to sample data from the datasource before a PublishResponse must be sent.

reviewed changes in call, agreed to changes and closed issue