tdf#100343: Refresh ValueSets after changing their value

yet another RenderContext regression

Change-Id: I77061f6047fee4be2b70739ff2523a24a847ef12
Reviewed-on: https://gerrit.libreoffice.org/26647
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>
diff --git a/svx/source/dialog/_bmpmask.cxx b/svx/source/dialog/_bmpmask.cxx
index 73f0821..c3c711f 100644
--- a/svx/source/dialog/_bmpmask.cxx
+++ b/svx/source/dialog/_bmpmask.cxx
@@ -567,24 +567,28 @@ void SvxBmpMask::PipetteClicked()
        m_pCbx1->Check();
        pData->CbxHdl(m_pCbx1);
        m_pQSet1->SetItemColor( 1, aPipetteColor );
        m_pQSet1->SetFormat();
    }
    else if( m_pQSet2->GetSelectItemId() == 1 )
    {
        m_pCbx2->Check();
        pData->CbxHdl(m_pCbx2);
        m_pQSet2->SetItemColor( 1, aPipetteColor );
        m_pQSet2->SetFormat();
    }
    else if( m_pQSet3->GetSelectItemId() == 1 )
    {
        m_pCbx3->Check();
        pData->CbxHdl(m_pCbx3);
        m_pQSet3->SetItemColor( 1, aPipetteColor );
        m_pQSet3->SetFormat();
    }
    else if( m_pQSet4->GetSelectItemId() == 1 )
    {
        m_pCbx4->Check();
        pData->CbxHdl(m_pCbx4);
        m_pQSet4->SetItemColor( 1, aPipetteColor );
        m_pQSet4->SetFormat();
    }

    m_pTbxPipette->CheckItem( m_pTbxPipette->GetItemId(0), false );