tdf#138156 diagonal borders always set even if in don't care mode

Change-Id: If55ac230c2f591e79a6c90df07870233a46eca5d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/105542
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
diff --git a/cui/source/tabpages/border.cxx b/cui/source/tabpages/border.cxx
index 8dc87e8..ed6c1ad 100644
--- a/cui/source/tabpages/border.cxx
+++ b/cui/source/tabpages/border.cxx
@@ -844,7 +844,8 @@ bool SvxBorderTabPage::FillItemSet( SfxItemSet* rCoreAttrs )

    SfxItemPool* pPool = rCoreAttrs->GetPool();

    if (m_aFrameSel.IsBorderEnabled(svx::FrameBorderType::TLBR))
    if (m_aFrameSel.IsBorderEnabled(svx::FrameBorderType::TLBR) &&
        m_aFrameSel.GetFrameBorderState(svx::FrameBorderType::TLBR) != svx::FrameBorderState::DontCare)
    {
        SvxLineItem aLineItem(*static_cast<const SvxLineItem*>(GetOldItem(*rCoreAttrs, SID_ATTR_BORDER_DIAG_TLBR)));
        aLineItem.SetLine(m_aFrameSel.GetFrameBorderStyle(svx::FrameBorderType::TLBR));
@@ -852,7 +853,8 @@ bool SvxBorderTabPage::FillItemSet( SfxItemSet* rCoreAttrs )
        bAttrsChanged = true;
    }

    if (m_aFrameSel.IsBorderEnabled(svx::FrameBorderType::BLTR))
    if (m_aFrameSel.IsBorderEnabled(svx::FrameBorderType::BLTR) &&
        m_aFrameSel.GetFrameBorderState(svx::FrameBorderType::BLTR) != svx::FrameBorderState::DontCare)
    {
        SvxLineItem aLineItem(*static_cast<const SvxLineItem*>(GetOldItem(*rCoreAttrs, SID_ATTR_BORDER_DIAG_BLTR)));
        aLineItem.SetLine(m_aFrameSel.GetFrameBorderStyle(svx::FrameBorderType::BLTR));