合同详情差价，修复清空居间商bug

src/HDrpManagement/contractManage/components/priceDifference/addPriceDiff.vue

@@ -27,7 +27,7 @@
                   <selectAgentNew ref="member" type="22" :param="agentListPrams" :radio="true" @onSelect="centerChange" @onCancel="agentVisible = false" ></selectAgentNew>
                   <el-input readonly type="text" slot="reference" size="small" @focus="showChange('agentVisible')" v-model="ascription.enterprisename" placeholder="请选择居间商" >
                     <template slot="append">
-                      <el-button size="small" @click="agentVisible = false;ascription.enterprisename = '';agentListPrams.content.where.condition = '';$refs.member.selected = []" style="width:100%" type="primary">清空</el-button>
+                      <el-button size="small" @click="agentVisible = false;ascription.enterprisename = '';agentListPrams.content.where.condition = '';$refs.member.selected = [];form.sys_enterpriseid = ''" style="width:100%" type="primary">清空</el-button>
                     </template>
                   </el-input>
                 </el-popover>