【fix】【多页签】新建新标签，拖拽空白标签为新窗口，空白标签无关闭按钮

PDF Office/PDF Master/Class/ChromiumTabs/src/Tab Strip/CTTabStripController.m

@@ -1759,6 +1759,9 @@ const NSTimeInterval kAnimationDuration = 0.125;
     newController.isNewTab = contents.isNewTab;
     if (modelIndex != 0) {
         newController.notFirstHome = YES;
+    }
+    if (newController.isNewTab) {
+        newController.notFirstHome = true;
     }
 	[newController setMini:[tabStripModel_ isMiniTabAtIndex:modelIndex]];
 	[newController setPinned:[tabStripModel_ isTabPinnedAtIndex:modelIndex]];