fix tdf#101832 and tdf#100617

OutDev mapmode takes shortcuts for 'simple' mappings, so clear that flag
once we set scale/origin away from defaults.

Change-Id: I00321e27322d9cb8b86e6cc8400f6396d03328cc
Reviewed-on: https://gerrit.libreoffice.org/30855Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

vcl/source/gdi/mapmod.cxx

@@ -114,18 +114,21 @@ void MapMode::SetMapUnit( MapUnit eUnit )
 void MapMode::SetOrigin( const Point& rLogicOrg )
 {
     mpImplMapMode->maOrigin = rLogicOrg;
+    mpImplMapMode->mbSimple = false;
 }
 
 void MapMode::SetScaleX( const Fraction& rScaleX )
 {
     mpImplMapMode->maScaleX = rScaleX;
     mpImplMapMode->maScaleX.ReduceInaccurate(32);
+    mpImplMapMode->mbSimple = false;
 }
 
 void MapMode::SetScaleY( const Fraction& rScaleY )
 {
     mpImplMapMode->maScaleY = rScaleY;
     mpImplMapMode->maScaleY.ReduceInaccurate(32);
+    mpImplMapMode->mbSimple = false;
 }
 
 double MapMode::GetUnitMultiplier() const