Resetting your player galaxy map after transferring player_x.dat to a server

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All of a sudden all of my friends are discovering Avorion... so I'm now hosting a dedicated server. But I figured I didn't want to start from scratch and copied my player file to the server only to see that the galaxy map appears to be saved inside the player file. All the old gateways and wormholes and discovered sectors. Everything is still visible on the map although not really there on the server. It also does not update i.e. remove non-existing gate connections and wormholes. Is there any way to reset the map? I already searched through the script files but am unable to pinpoint the exact script responsible for rendering the galaxy map.

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So it seems that gate/wormhole lines as well as space-time-rifts are tied to discovered sectors. And there is a function to "Remove Sector" from your map. With this function I was able to remove all previously known sectors including rifts. Sadly I couldn't find it in the scripts so I hat  to manually click all the old sectors. Took me a while, but worked.