fix(@gms/gms-plugin-billexpand): 同意按钮先调后端校验，后走选择审批人逻辑

develop/@gms/gms-plugin-billexpand/src/actions/agreeAction.js

@@ -84,6 +84,7 @@ export default {
     })
   },
   approvalLogical: function (bill, param) {
+    const getApprovalList = () => {
       let taskId = bill.getGlobalParam('reviewParam').taskId;
       bill.setControlsSate(param["_control_name_"], "enable", false)
       let selectedApprovers = []
@@ -140,15 +141,15 @@ export default {
       }).catch(() => {
         GMS.$hideContainer.$Message.error('未找到下一节点的审批人');
       })
-  },
-  executeApproval: function(bill, param) {
+    }
+
     if (param.param.actions) {
       let saveParam = {
         actions: param.param.actions
       }
       bill.executeServerAction(saveParam, function (code, data) {
         if (code === 200) {
-          this.approval(bill, param);
+          getApprovalList()
         } else {
           bill.setControlsSate(param["_control_name_"], "enable", true)
           if (data.message.includes('还款金额不能大于未还金额')) {
@@ -160,10 +161,10 @@ export default {
         }
       }.bind(this));
     } else {
-      this.approval(bill, param);
+      getApprovalList()
     }
   },
-  approval: function (bill, param) {
+  executeApproval: function(bill, param) {
     let taskId = bill.getGlobalParam('reviewParam').taskId;
     let comments = bill.getGlobalParam('reviewParam').suggestions ? bill.getGlobalParam('reviewParam').suggestions : "";
     GMS.$http.post('/rbc/workflow/approve/completed/' + taskId + '?result=1&comments=' + comments).then(