[bug] 合同作废关联项目编辑合同号不显示placeholder问题

src/views/incomePayments/memberManage/modules/SafeguardMemberModal.vue

@@ -366,6 +366,8 @@ export default {
           })
         }, 100)
       }
+      // 合同作废后合同号是null，这里置为undefined
+      record.contractNo = record.contractNo || undefined
       this.model = Object.assign({}, record)
       // 编辑状态下的企业与联系人的回显
       if (record.companyId) {

src/views/projectManagement/modules/GeneralProjectModule.vue

@@ -374,6 +374,7 @@ export default {
       record.mailContactsId = this.signedContactId || record.mailContactsTemporaryId || undefined
       // 回显选中的企业
       this.selectedCompany = record.chargeCompany
+      record.contractNum = record.contractNum || undefined
       this.form.resetFields()
       this.model = Object.assign({}, record)
       if (this.model.id) {

src/views/projectManagement/modules/WorkingGroupMemberUnitModule.vue

@@ -467,6 +467,7 @@ export default {
       this.selectedCompany = record.chargeCompany
       this.companyChange(this.selectedCompany)
       this.form.resetFields()
+      record.contractNum = record.contractNum || undefined
       this.model = Object.assign({}, record)
       // 是否存在从收入合同传入的签订联系人id
       this.model.contactsIdOne = this.signedContactId || this.model.contactsTemporaryIdOne || undefined