🐛fix: 修复加签

OpenAuth.App/FlowApproverApp/FlowApproverApp.cs

@@ -103,22 +103,23 @@ namespace OpenAuth.App
         /// </summary>
         public FlowApprover[] GetApprovers(QueryApproverReq req)
         {
-            var query= Repository.AsQueryable()
+              // 一次查询，内存中处理，避免 ISugarQueryable 状态污染
+            var all = Repository.AsQueryable()
                 .Where(u => u.InstanceId == req.FlowInstanceId 
-                            && u.ActivityId == req.ActivityId && u.Status == 0); //本节点待审批的加签人
-            if (query.Count() == 0)
+                            && u.ActivityId == req.ActivityId && u.Status == 0)
+                .OrderBy(u => u.OrderNo)
+                .ToArray();
+
+            if (all.Length == 0) return null;
+
+            // 顺序执行：只返回第一个
+            if (all[0].ApproveType == Define.APPROVE_TYPE_SEQUENTIAL)
             {
-                return null;
+                return new[] { all[0] };
             }
-            
-            //如果是顺序执行，取第一个人
-            if (query.First().ApproveType == Define.APPROVE_TYPE_SEQUENTIAL)
-            {
-                var result = query.OrderBy(u => u.OrderNo).First();
-                return new[] { result };
-            }
-            //否则并行且/并行或都是返回所有加签人
-            return query.ToArray();
+
+            // 并行且/并行或：返回全部
+            return all;
         }
         
         /// <summary>