修复：

左侧固定列结合展开行，展开行宽度计算错误的问题

Author: huangshuwei

packages/style/ve-table.less

@@ -138,11 +138,13 @@
 
     // virtual scroll phantom
     .ve-table-virtual-phantom {
-      position: absolute;
-      left: 0;
-      top: 0;
-      right: 0;
-      z-index: @ve-virtual-phantom-index;
+      &.ve-table-virtual-scroll {
+        position: absolute;
+        left: 0;
+        top: 0;
+        right: 0;
+        z-index: @ve-virtual-phantom-index;
+      }
     }
 
     // 固定列效果

packages/ve-table/src/index.jsx

@@ -763,10 +763,9 @@ export default {
             2、
             has left fixed column and expand option（resolve expand row content sticky）
             */
-            if (
-                this.isVirtualScroll ||
-                (this.hasLeftFixedColumn && this.expandOption)
-            ) {
+            const { isVirtualScroll, hasLeftFixedColumn, expandOption } = this;
+
+            if (isVirtualScroll || (hasLeftFixedColumn && expandOption)) {
                 const props = {
                     props: {
                         tagName: "div"
@@ -786,7 +785,10 @@ export default {
                 content = (
                     <div
                         ref={this.virtualPhantomRef}
-                        class={clsName("virtual-phantom")}
+                        class={[
+                            clsName("virtual-phantom"),
+                            isVirtualScroll ? clsName("virtual-scroll") : ""
+                        ]}
                     >
                         <VueDomResizeObserver {...props} />
                     </div>