[OpenLayers-Users] delete controls withiut removing drawn features

[Peter]

Thanks this works. but my problem now is, that all the polygons i have drawn
are deleted when i destroy the control and i get an Error with:
this.rendererRoot is null

...nts.triggerEvent("beforefeaturesadded",d)===!1)return;a=d.features}for(var
d=[],...

OpenLayers.js (Zeile 795)

so i any ideas how i can solve this? 

Thans and Greetings

Peter


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