修复小ubg

src/components/medical-insurance/patient-overview/Index.vue

@@ -141,8 +141,8 @@ const cptOverviews = computed(() => {
 })
 
 const fetchOverviews = () => {
-  medinsStore.setCurrentWard(currentWard.value)
-  getOverView(currentWard.value, false).then((res) => {
+  medinsStore.setCurrentWard(currentWard.value || '')
+  getOverView(currentWard.value || '', false).then((res) => {
     overviews.value = res
   })
 }