tdf#145128 "Perform file extension check" should be disabled if finalized

Change-Id: I7181ab8dde28fd5580a90fb267b31eaffd6a9878
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/124567
Tested-by: Jenkins
Reviewed-by: Andras Timar <andras.timar@collabora.com>
diff --git a/cui/source/options/optgdlg.cxx b/cui/source/options/optgdlg.cxx
index 5e010bf..43b529a 100644
--- a/cui/source/options/optgdlg.cxx
+++ b/cui/source/options/optgdlg.cxx
@@ -327,6 +327,7 @@ void OfaMiscTabPage::Reset( const SfxItemSet* rSet )
    m_xPerformFileExtCheck->set_active(
        officecfg::Office::Common::Misc::PerformFileExtCheck::get());
    m_xPerformFileExtCheck->save_state();
    m_xPerformFileExtCheck->set_sensitive(!officecfg::Office::Common::Misc::PerformFileExtCheck::isReadOnly());
#endif
}