fix: use defaultPanel when it equals nearestAnchor

Author: malangfox

src/Flicking.ts

@@ -1739,7 +1739,7 @@ class Flicking extends Component<FlickingEvents> {
     if (!defaultPanel) return;
 
     const nearestAnchor = camera.findNearestAnchor(defaultPanel.position);
-    const initialPanel = (nearestAnchor && defaultPanel.index !== nearestAnchor.panel.index) ? nearestAnchor.panel : defaultPanel;
+    const initialPanel = (nearestAnchor && defaultPanel.position !== nearestAnchor.panel.position && defaultPanel.index !== nearestAnchor.panel.index) ? nearestAnchor.panel : defaultPanel;
     control.setActive(initialPanel, null, false);
 
     if (!nearestAnchor) {