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