tdf#123433 ww8import: end same attribute as what started

This resolves the regression from the bugfix for tdf#116071 from
commit 3539a1efb41a787237e4333ebc715db96ffacb5b

Change-Id: I59929401d84e3ad201bffc8aa9b50057ac716e71
Reviewed-on: https://gerrit.libreoffice.org/68011
Tested-by: Jenkins
Reviewed-by: Justin Luth <justin_luth@sil.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
(cherry picked from commit 1a01b2f7ef83a0c73a52eefaed4a37a2c0812dda)
Reviewed-on: https://gerrit.libreoffice.org/68066
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>
diff --git a/sw/qa/extras/ww8export/data/tdf123433_fillStyleStop.doc b/sw/qa/extras/ww8export/data/tdf123433_fillStyleStop.doc
new file mode 100644
index 0000000..f8321e9
--- /dev/null
+++ b/sw/qa/extras/ww8export/data/tdf123433_fillStyleStop.doc
Binary files differ
diff --git a/sw/qa/extras/ww8export/ww8export3.cxx b/sw/qa/extras/ww8export/ww8export3.cxx
index 836ee56..9550933 100644
--- a/sw/qa/extras/ww8export/ww8export3.cxx
+++ b/sw/qa/extras/ww8export/ww8export3.cxx
@@ -182,6 +182,13 @@ DECLARE_WW8EXPORT_TEST(testTdf121111_fillStyleNone, "tdf121111_fillStyleNone.doc
    CPPUNIT_ASSERT_EQUAL(drawing::FillStyle_SOLID, getProperty<drawing::FillStyle>(xText, "FillStyle"));
}

DECLARE_WW8EXPORT_TEST(testTdf123433_fillStyleStop, "tdf123433_fillStyleStop.doc")
{
    uno::Reference<text::XTextRange> xText(getParagraph(12));
    CPPUNIT_ASSERT_EQUAL(drawing::FillStyle_NONE, getProperty<drawing::FillStyle>(xText, "FillStyle"));
    CPPUNIT_ASSERT_EQUAL(COL_AUTO, Color(getProperty<sal_uInt32>(xText, "ParaBackColor")));
}

DECLARE_WW8EXPORT_TEST(testTdf94009_zeroPgMargin, "tdf94009_zeroPgMargin.odt")
{
    uno::Reference<beans::XPropertySet> defaultStyle(getStyles("PageStyles")->getByName("Standard"),
diff --git a/sw/source/filter/ww8/ww8par6.cxx b/sw/source/filter/ww8/ww8par6.cxx
index 5a31a88..7947f51 100644
--- a/sw/source/filter/ww8/ww8par6.cxx
+++ b/sw/source/filter/ww8/ww8par6.cxx
@@ -4776,7 +4776,8 @@ void SwWW8ImplReader::Read_Shade( sal_uInt16, const sal_uInt8* pData, short nLen
    if (nLen < 2)
    {
        // end of attribute
        m_xCtrlStck->SetAttr( *m_pPaM->GetPoint(), RES_BACKGROUND );
        m_xCtrlStck->SetAttr( *m_pPaM->GetPoint(), XATTR_FILLSTYLE );
        m_xCtrlStck->SetAttr( *m_pPaM->GetPoint(), XATTR_FILLCOLOR );
    }
    else
    {
@@ -4794,7 +4795,8 @@ void SwWW8ImplReader::Read_ParaBackColor(sal_uInt16, const sal_uInt8* pData, sho
    if (nLen <= 0)
    {
        // end of attribute
        m_xCtrlStck->SetAttr( *m_pPaM->GetPoint(), RES_BACKGROUND );
        m_xCtrlStck->SetAttr( *m_pPaM->GetPoint(), XATTR_FILLSTYLE );
        m_xCtrlStck->SetAttr( *m_pPaM->GetPoint(), XATTR_FILLCOLOR );
    }
    else
    {