[LyX/master] InsetIndex: enable escaping for terms in the index

[Thibaut Cuvelier]

commit 77f0fbdc9a186f9e544077e2288f48ceabfc11ab
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Sun Nov 20 00:19:53 2022 +0100

    InsetIndex: enable escaping for terms in the index
    
    The previous code explicitly disabled it and this behaviour caused problems (like "A&A" being output as-is, which is wrong in HTML: it should be "A&A").
---
 src/insets/InsetIndex.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/insets/InsetIndex.cpp b/src/insets/InsetIndex.cpp
index 181c99b..3788a36 100644
--- a/src/insets/InsetIndex.cpp
+++ b/src/insets/InsetIndex.cpp
@@ -1730,7 +1730,7 @@ void outputIndexPage(XMLStream & xs, const IndexNode* root_node, unsigned depth
 
 	xs << xml::StartTag("li", "class='" + generateCssClassAtDepth(depth) + "'");
 	xs << xml::CR();
-	xs << XMLStream::ESCAPE_NONE << termAtLevel(root_node, depth);
+	xs << termAtLevel(root_node, depth);
 	// By tree assumption, all the entries at this node have the same set of terms.
 
 	if (!root_node->entries.empty()) {