Multi tab: cannot drop multiple tabs into separate workspace window (#219671)

(fix #212885)

src/vs/workbench/browser/parts/editor/multiEditorTabsControl.ts

@@ -1106,7 +1106,7 @@ export class MultiEditorTabsControl extends EditorTabsControl {
 				}
 
 				// Apply some datatransfer types to allow for dragging the element outside of the application
-				this.doFillResourceDataTransfers([editor], e, isNewWindowOperation);
+				this.doFillResourceDataTransfers(selectedEditors, e, isNewWindowOperation);
 
 				scheduleAtNextAnimationFrame(getWindow(this.parent), () => this.updateDropFeedback(tab, false, e, tabIndex));
 			},