hotfix: fix npe

hnqz-upms/hnqz-upms-biz/src/main/java/com/qunzhixinxi/hnqz/admin/manager/WmSupervisionManager.java

@@ -1465,7 +1465,7 @@ public class WmSupervisionManager {
             .collect(Collectors.toList());
 
     // show actionable only
-    if(query.getSupervision()) {
+    if (query.getSupervision() != null && query.getSupervision()) {
       collect = collect.stream().filter((record) -> (Boolean)record.get("toCheck"))
         .collect(Collectors.toList());
     }