tdf#152974 revert change to ORichTextModel::getPropertyDefaultByHandle

properties that match the default are not exported, so we're basically
stuck with what is in there for compatibility with older versions, so
revert

commit ca46afebb7dc0ec4375e995fa90edccbed6c2530
Date:   Tue Oct 4 16:22:51 2022 +0100

    default to 'flat' instead of '3D Look' for form controls

and set m_nBorder to the desired new default in the ctor but
leave getPropertyDefaultByHandle as it always was

Change-Id: Ia862fc6851248fc9b16b3b4c505fdaf6fdb4b2ac
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/151497
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/forms/source/richtext/richtextmodel.cxx b/forms/source/richtext/richtextmodel.cxx
index c07dcb4..61f647b 100644
--- a/forms/source/richtext/richtextmodel.cxx
+++ b/forms/source/richtext/richtextmodel.cxx
@@ -64,7 +64,9 @@ namespace frm
        m_nClassId = FormComponentType::TEXTFIELD;

        getPropertyDefaultByHandle( PROPERTY_ID_DEFAULTCONTROL          ) >>= m_sDefaultControl;
        getPropertyDefaultByHandle( PROPERTY_ID_BORDER                  ) >>= m_nBorder;
        // Default to 'flat' instead of '3D Look' for form controls, but don't change
        // getPropertyDefaultByHandle, see tdf#152974
        m_nBorder = 2;
        getPropertyDefaultByHandle( PROPERTY_ID_ENABLED                 ) >>= m_bEnabled;
        getPropertyDefaultByHandle( PROPERTY_ID_ENABLEVISIBLE           ) >>= m_bEnableVisible;
        getPropertyDefaultByHandle( PROPERTY_ID_HARDLINEBREAKS          ) >>= m_bHardLineBreaks;
@@ -450,7 +452,9 @@ namespace frm
        }
    }


    // note tdf#152974, we can't simply change a default here because properties
    // that match the default are not exported, so for compatibility these
    // can't be changed without some sort of solution for that
    Any ORichTextModel::getPropertyDefaultByHandle( sal_Int32 _nHandle ) const
    {
        Any aDefault;
@@ -506,7 +510,7 @@ namespace frm
            break;

        case PROPERTY_ID_BORDER:
            aDefault <<= sal_Int16(2);
            aDefault <<= sal_Int16(1);
            break;

        default: