tdf#130133: fix wrong values for attribute chart:regression-type in ODF 1.2

"polynomial" and "moving-average"

Change-Id: I5d07d0315555e8b72ea721a35a2205a8223ed294
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87226
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@cib.de>
(cherry picked from commit 84c2b1ab7a8cf5d7f568ef05d4b2b25e783382b6)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87253
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
diff --git a/xmloff/source/chart/PropertyMaps.cxx b/xmloff/source/chart/PropertyMaps.cxx
index ecf7f86..68658a2 100644
--- a/xmloff/source/chart/PropertyMaps.cxx
+++ b/xmloff/source/chart/PropertyMaps.cxx
@@ -466,6 +466,8 @@
                break;
            case XML_SCH_CONTEXT_SPECIAL_REGRESSION_TYPE:
                {
                    const SvtSaveOptions::ODFDefaultVersion nCurrentVersion( SvtSaveOptions().GetODFDefaultVersion() );

                    OUString aServiceName;
                    rProperty.maValue >>= aServiceName;
                    if      (aServiceName == "com.sun.star.chart2.LinearRegressionCurve")
@@ -476,9 +478,9 @@
                        sValueBuffer.append( GetXMLToken( XML_EXPONENTIAL ));
                    else if (aServiceName == "com.sun.star.chart2.PotentialRegressionCurve")
                        sValueBuffer.append( GetXMLToken( XML_POWER ));
                    else if (aServiceName == "com.sun.star.chart2.PolynomialRegressionCurve")
                    else if (nCurrentVersion > SvtSaveOptions::ODFVER_012 && aServiceName == "com.sun.star.chart2.PolynomialRegressionCurve")
                        sValueBuffer.append( GetXMLToken( XML_POLYNOMIAL ));
                    else if (aServiceName == "com.sun.star.chart2.MovingAverageRegressionCurve")
                    else if (nCurrentVersion > SvtSaveOptions::ODFVER_012 && aServiceName == "com.sun.star.chart2.MovingAverageRegressionCurve")
                        sValueBuffer.append( GetXMLToken( XML_MOVING_AVERAGE ));
                }
                break;