[LyX/master] XHTML: restore sections.

[Thibaut Cuvelier]

commit 0dfa24020919a436a5ee8937bb0bbc7c0863406d
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Wed Sep 16 04:13:42 2020 +0200

    XHTML: restore sections.
---
 src/output_xhtml.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/output_xhtml.cpp b/src/output_xhtml.cpp
index f8cd53e..fe396f8 100644
--- a/src/output_xhtml.cpp
+++ b/src/output_xhtml.cpp
@@ -675,7 +675,7 @@ void xhtmlParagraphs(Text const & text,
 
 	// If need be, close <section>s, but only at the end of the document (otherwise, dealt with at the beginning
 	// of the loop).
-	while (!headerLevels.empty() && headerLevels.top() > Layout::NOT_IN_TOC) {
+	while (!headerLevels.empty() && headerLevels.top() != Layout::NOT_IN_TOC && headerLevels.top() > 1) {
 		docstring tag = from_utf8("</section>");
 		headerLevels.pop();
 		xs << XMLStream::ESCAPE_NONE << tag;