Fix a crash when closing tabs

[lyx.git] / src / output_docbook.cpp

diff --git a/src/output_docbook.cpp b/src/output_docbook.cpp
index f3ac01870d4580751e0e658ad50410f94d231503..e039d70ea69acd3ecfe5ea7d6ce10d37d327c7b3 100644 (file)
--- a/src/output_docbook.cpp
+++ b/src/output_docbook.cpp
@@ -1110,7 +1110,7 @@ void docbookParagraphs(Text const &text,
            // Check the condition on the first few elements.
            bool hasPreface = false;
            pit_type pref_bpit = bpit;
-           pit_type pref_epit = bpit + 1;
+           pit_type pref_epit = bpit;
 
            static const std::set<std::string> allowedElements = {
                    // List from https://tdg.docbook.org/tdg/5.2/book.html
@@ -1118,7 +1118,7 @@ void docbookParagraphs(Text const &text,
                    "glossary", "index", "part", "preface", "reference", "toc"
            };
 
-           for (; pref_epit <= epit; ++pref_epit) {
+           for (; pref_epit < epit; ++pref_epit) {
             auto par = text.paragraphs().iterator_at(pref_epit);
             if (allowedElements.find(par->layout().docbooktag()) != allowedElements.end() ||
                     allowedElements.find(par->layout().docbooksectiontag()) != allowedElements.end())