tdf#133855 return early if disposed by FilterSelect

Change-Id: I532cf28039f2a63cbfd68aff44810cf6a5d40afc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/96276
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/sc/source/ui/view/gridwin.cxx b/sc/source/ui/view/gridwin.cxx
index bb55a74..32edc3e 100644
--- a/sc/source/ui/view/gridwin.cxx
+++ b/sc/source/ui/view/gridwin.cxx
@@ -300,6 +300,11 @@ IMPL_LINK_NOARG(ScFilterListBox, AsyncSelectHdl, void*, void)
{
    pGridWin->FilterSelect( nSel );
    nAsyncSelectHdl = nullptr;
    if (!pGridWin)
    {
        // tdf#133855 we got disposed by FilterSelect
        return;
    }
    pGridWin->ClickExtern();
}