切换相机时清除电子围栏数据

src/views/cameras/preview/CameraPreview.vue

@@ -34,6 +34,7 @@
   watch(
     () => cameraDetailStore.cameraId,
     async (cameraId) => {
+      fenceStore.clear();
       if (cameraId) {
         const presetList = await presetListStore.getPresetList(cameraId);