修改部门去除公路，路段时问题

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/service/dept/update/UpdateDeptService.java

@@ -210,8 +210,20 @@ public class UpdateDeptService {
 
         // 差集：删除公路
         Collection<String> subRoadIdList = org.apache.commons.collections4.CollectionUtils.subtract(oldRoadIdList, newRoadIdList);
+        Map<String, Long> oldRoadIdMap = oldRoadIdList.stream().collect(Collectors.groupingBy(p -> p, Collectors.counting()));
+        Map<String, Long> subRoadIdMap = subRoadIdList.stream().collect(Collectors.groupingBy(p -> p, Collectors.counting()));
         if (!CollectionUtils.isEmpty(subRoadIdList)) {
-            this.removeRoadToDept(tenantId, newEditDeptRequest.getId(), subRoadIdList);
+            List<String> deleteRoadIdList = new ArrayList<>();
+            for (String roadId : subRoadIdList) {
+                Long oldCount = oldRoadIdMap.get(roadId);
+                Long subCount = subRoadIdMap.get(roadId);
+                if (oldCount.equals(subCount)) {
+                    deleteRoadIdList.add(roadId);
+                }
+            }
+            if (CollectionUtil.isNotEmpty(deleteRoadIdList)) {
+                this.removeRoadToDept(tenantId, newEditDeptRequest.getId(), subRoadIdList);
+            }
         }
     }