Index: Source/GSDragView.m
===================================================================
--- Source/GSDragView.m	(Revision 25955)
+++ Source/GSDragView.m	(Arbeitskopie)
@@ -900,7 +900,7 @@
     {
       unsigned int newMask;
 
-      newMask = [dragSource draggingSourceOperationMaskForLocal: destExternal];
+      newMask = [dragSource draggingSourceOperationMaskForLocal: !destExternal];
       if (newMask != dragMask)
         {
           dragMask = newMask;