fix: drop logic

Author: lukasbach

packages/core/src/features/drag-and-drop/feature.ts

@@ -301,14 +301,15 @@ export const dragAndDropFeature: FeatureImplementation = {
         const dataRef = tree.getDataRef<DndDataRef>();
         const target = getDragTarget(e, item, tree);
         const draggedItems = tree.getState().dnd?.draggedItems;
+        const isValidDrop = canDrop(e.dataTransfer, target, tree);
 
         tree.applySubStateUpdate("dnd", {
           draggedItems: undefined,
           draggingOverItem: undefined,
           dragTarget: undefined,
         });
 
-        if (!canDrop(e.dataTransfer, target, tree)) {
+        if (!isValidDrop) {
           return;
         }