Merge pull request SonicCloudOrg#279 from caofengbin/feature/check_public_step_recursion

【feat】保存公共步骤时，判断下是否有子步骤引用了当前父步骤

Author: ZhouYixun

src/components/PublicStepUpdate.vue

@@ -175,6 +175,10 @@ const summit = () => {
           } else {
             emit('flush', true);
           }
+        } else {
+          ElMessage.error({
+            message: resp.data,
+          });
         }
       });
     }