tdf#125241 SvTreeListBox has a separate SetUpdateMode

so just Window:SetUpdateMode was called, not also
SvTreeListBox::SetUpdateMode

Change-Id: I37a91f8aff6e8a2399cb7cacfcdc6b3f8b1f44ab
Reviewed-on: https://gerrit.libreoffice.org/72450
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/source/app/salvtables.cxx

@@ -2640,6 +2640,18 @@ public:
         }
     }
 
+    virtual void freeze() override
+    {
+        SalInstanceWidget::freeze();
+        m_xTreeView->SetUpdateMode(false);
+    }
+
+    virtual void thaw() override
+    {
+        m_xTreeView->SetUpdateMode(true);
+        SalInstanceWidget::thaw();
+    }
+
     virtual void set_column_fixed_widths(const std::vector<int>& rWidths) override
     {
         m_bDisableCheckBoxAutoWidth = true;