Refine the fix for the bug that cause assert when do the reconnect in the callback function.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15914 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/SetupBrowserDxe/Setup.c

@@ -2449,7 +2449,10 @@ ValidateFormSet (
   ASSERT (FormSet != NULL);
 
   Find = ValidateHiiHandle(FormSet->HiiHandle);
-  if (!Find) {
+  //
+  // Should not remove the formset which is being used.
+  //
+  if (!Find && (FormSet != gCurrentSelection->FormSet)) {
     CleanBrowserStorage(FormSet);
     RemoveEntryList (&FormSet->Link);
     DestroyFormSet (FormSet);