优化手机流程审批页面，增加return防止继续运行代码。

Learun.Framework.Ultimate V7/LearunApp-2.2.0/pages/nworkflow/myflow/sign.vue

@@ -423,6 +423,7 @@ export default {
 			this.EMIT('task-list-change')
 			this.NAV_BACK(2)
 			this.TOAST(`已成功提交${this.typeText}`, 'success')
+			return;
 		}
 		let arr = Object.entries(userList)
 		this.reviewerListId = arr[0][0]