[dev] Question regarding Outputfilter in OTRS 4.0

Hey guys, is there any reason or trick to prevent an Pre or Post Outputfilter is started 3 times in AgentTicketZoom? I created a small Outputfilter for the AgentTicketZoom and it gets started 3 times, always with the same template. The other templates are fine. Any ideas on that? OTRS Version is 4.0.5. Thanks in advance. Johannes Links to an example: https://gist.github.com/hanneshal/0660396b5dbba4ede4bb (Filter) https://gist.github.com/hanneshal/b11df11bdf229b508444 (Config) Package to link it direct to a test system https://dl.dropboxusercontent.com/u/9154319/of.zip