fixed - deselect origin list (Issue #387)

Author: rsoika

open-bpmn.glsp-server/src/main/java/org/openbpmn/glsp/operations/BPMNPasteOperationHandler.java

@@ -175,8 +175,9 @@ private void executeOperation(PasteOperation operation) {
         // reset model state..
         modelState.reset();
 
-        // preselect new pasted elements
-        actionDispatcher.dispatchAfterNextUpdate(new SelectAction(newElementIDList));
+        // Issue #387 origin elements
+        // preselect new pasted elements and deselect origin elements
+        actionDispatcher.dispatchAfterNextUpdate(new SelectAction(newElementIDList, selectedElements));
     }
 
     /**