tdf#41202 allow decrease selection with shift-click in writer

Change-Id: Ic9522af1d3f41188f6feb31e68737fba83b3c6d4
Reviewed-on: https://gerrit.libreoffice.org/64995
Tested-by: Jenkins
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
diff --git a/sw/source/uibase/docvw/edtwin.cxx b/sw/source/uibase/docvw/edtwin.cxx
index 201d2b2..c7910ec 100644
--- a/sw/source/uibase/docvw/edtwin.cxx
+++ b/sw/source/uibase/docvw/edtwin.cxx
@@ -3625,11 +3625,9 @@ void SwEditWin::MouseButtonDown(const MouseEvent& _rMEvt)
                if( !bOverSelect )
                    bOverURLGrf = bOverSelect = nullptr != rSh.IsURLGrfAtPos( aDocPos );

                if ( !bOverSelect )
                {
                    MoveCursor( rSh, aDocPos, bOnlyText, bLockView );
                    bCallBase = false;
                }
                MoveCursor( rSh, aDocPos, bOnlyText, bLockView );
                bCallBase = false;

                if (!bOverURLGrf && !bExecDrawTextLink && !bOnlyText)
                {
                    const SelectionType nSelType = rSh.GetSelectionType();