Adding a event person, edits all related persons

[wingfire]

Recent changes:

May 07, 2012 10:45 xyz updated Event: Flash'en und Mesh'en
May 07, 2012 10:45 xyz updated Event person: M... M... (coordinator) on Event: Flash'en und Mesh'en
May 07, 2012 10:45 xyz created Event person: M... W... (speaker) on Event: Flash'en und Mesh'en
May 07, 2012 10:45 xyz updated Event person: J... L... (speaker) on Event: Flash'en und Mesh'en
May 07, 2012 10:45 xyz updated Event person: J... L... (submitter) on Event: Flash'en und Mesh'en

I only created and added MW, but it seams that the other Event persons changed as well.