2.3.9

• 修复当 TableColumn 的 prop 属性指定的字段在数据源中不存在时，鼠标移入该列单元格会报错的问题，#11137
• 弹出类组件的 lockScroll 属性不再为父元素添加内联样式，而是添加相应类名，#11114
• 修复 Progress 在 status 为 exception 时图标不显示的问题，#11172
• 修复可搜索的 Cascader 在输入关键词后，选项的 disabled 属性失效的问题，#11185
• 修复可展开的 Table 在展开某一行后更新数据源会造成该行无法收起的问题，#11186
• Tree 的 setCurrentKey 方法支持传入 null，可取消当前高亮的节点，#11205

• Fixed when the source data does not have the field specified by a TableColumn's prop attribute, an error would occur when the mouse moves into that column's cells, #11137
• The lockScroll attribute of pop up components no longer adds an inline style to the parent element, but instead adds a class name, #11114
• Fixed the icon of Progress not displaying when its status is exception, #11172
• Fixed options' disabled attribute not working in filterable Cascader's filter result list, #11185
• Fixed an issue where Table's expanded row cannot be collapsed if the data source is updated after its expansion, #11186
• setCurrentKey of Tree now accepts null as its param to cancel the currently highlighted node, #11205