It looks like you also use for web data-tag and for server container data-client.
I have the same problem. In my case it happens when “Request type” = POST. If I change to “Request type” = GET, it works and no fake events are created when publishing the container.
I think the problem in the data-tag
For some reason when publishing a web container three events are triggered for each. Check yourself, change something in the web tag and publish the web container, you will most likely get what you described above, as in this video