master elective - open student `report-table` - fault tolerance

src/views/elective/generation/detail.vue

@@ -272,7 +272,7 @@ export default {
           activeOpt: this.activeOpt,
           roundGroups: this.prevData.groups,
           models: res.data,
-          activeModels: res.data
+          activeModels: res.data?.filter(g => g.generation <= query.generation) || []
         }
         this.studentTableVisible = true
       }).finally(() => this.loading = false)