Resolves: tdf#122914 missing save_value

Change-Id: Ie28195f342b73b1420a1a120b1414941aab337b7
Reviewed-on: https://gerrit.libreoffice.org/66864
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
diff --git a/cui/source/tabpages/border.cxx b/cui/source/tabpages/border.cxx
index 749505c..0092970 100644
--- a/cui/source/tabpages/border.cxx
+++ b/cui/source/tabpages/border.cxx
@@ -159,6 +159,7 @@ void ShadowControlsWrapper::SetControlValue(const SvxShadowItem& rItem)
    }
    mrMfSize.set_value(mrMfSize.normalize(rItem.GetWidth()), FieldUnit::TWIP);
    mrLbColor.SelectEntry(rItem.GetColor());
    mrMfSize.save_value();
}

void ShadowControlsWrapper::SetControlDontKnow()