RTF import: handle column break at the very start of the document

Change-Id: Ib7d166bf1b1e5d5216d822b2b0396aa4dc535c6f

sw/qa/extras/rtfimport/data/column-break.rtf

+{\rtf1\cols2\column hello\par}

sw/qa/extras/rtfimport/rtfimport.cxx

@@ -1759,6 +1759,12 @@ DECLARE_RTFIMPORT_TEST(testFontOverride, "font-override.rtf")
     CPPUNIT_ASSERT_EQUAL(OUString("Arial"), getProperty<OUString>(getRun(getParagraph(1), 1), "CharFontName"));
 }
 
+DECLARE_RTFIMPORT_TEST(testColumnBreak, "column-break.rtf")
+{
+    // Column break at the very start of the document was ignored.
+    CPPUNIT_ASSERT_EQUAL(style::BreakType_COLUMN_BEFORE, getProperty<style::BreakType>(getParagraph(2), "BreakType"));
+}
+
 CPPUNIT_PLUGIN_IMPLEMENT();
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

writerfilter/source/rtftok/rtfdocumentimpl.cxx

@@ -2243,6 +2243,7 @@ int RTFDocumentImpl::dispatchSymbol(RTFKeyword nKeyword)
             if (pNum.get() && pNum->getInt() > 1)
                 bColumns = true;
         }
+        checkFirstRun();
         if (bColumns)
         {
             sal_uInt8 sBreak[] = { 0xe };