修复 bug 4465

CODE/smart-community/app-api/src/main/resources/mapper/TpRentalHouseMapper.xml

       and community_id = #{communityId}
       and rh.house_status = 1
     </where>
+    order by rh.sort desc, update_date desc
     <if test="priceFluctuate == 1" >
-        order by rh.sort desc, (rh.rental_price+0)  asc
+        , (rh.rental_price+0)  asc
     </if>
 
     <if test="priceFluctuate == 2" >
-        order by rh.sort desc, (rh.rental_price+0)  desc
+        , (rh.rental_price+0)  desc
     </if>
   </select>
 </mapper>