bugfix

themis-business/src/main/java/com/qmth/themis/business/service/impl/WarningServiceImpl.java

@@ -248,6 +248,7 @@ public class WarningServiceImpl implements WarningService {
             String[] s = String.valueOf(map.get("photoUrls")).split(",");
             Collections.addAll(photoUrls, s);
             if (photoUrls.size() > count) {
+                count = count == 0 ? photoUrls.size() : count;
                 photoUrls = photoUrls.subList(0, count);
             }
         }