[WFS provider] Recognize Geomedia layers with gmgml:LineString_Curve_MultiCurve_CompositeCurvePropertyType type as multilinestring layers (#16675)

Author: rouault

src/providers/wfs/qgswfsprovider.cpp

@@ -1287,6 +1287,12 @@ bool QgsWFSProvider::readAttributesFromSchema( QDomDocument& schemaDoc,
       geometryAttribute = name;
       geomType = QGis::WKBMultiPolygon;
     }
+    else if ( type == QLatin1String( "gmgml:LineString_Curve_MultiCurve_CompositeCurvePropertyType" ) )
+    {
+      foundGeometryAttribute = true;
+      geometryAttribute = name;
+      geomType = QgsWkbTypes::MultiLineString;
+    }
     //is it a geometry attribute?
     //MH 090428: sometimes the <element> tags for geometry attributes have only attribute ref="gml:polygonProperty" and no name
     // the GeometryAssociationType has been seen in #11785