Don't send notifications for the initial display of the first tab of

dlls/comctl32/tab.c

@@ -178,12 +178,16 @@ TAB_SetCurFocus (HWND hwnd,WPARAM wParam)
   if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BUTTONS) {
     FIXME("Should set input focus\n");
   } else { 
+    int oldFocus = infoPtr->uFocus;
     if (infoPtr->iSelected != iItem || infoPtr->uFocus == -1 ) {
       infoPtr->uFocus = iItem;
+      if (oldFocus != -1) {
         if (TAB_SendSimpleNotify(hwnd, TCN_SELCHANGING)!=TRUE)  {
           infoPtr->iSelected = iItem;
           TAB_SendSimpleNotify(hwnd, TCN_SELCHANGE);
-
+        }
+        else
+          infoPtr->iSelected = iItem;
         TAB_EnsureSelectionVisible(hwnd, infoPtr);
         TAB_InvalidateTabArea(hwnd, infoPtr);
       }