From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Sun, 20 Oct 2019 10:54:59 +0000 (+0200)
Subject: Set buffer when expanding macro
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=419c20bee1b1abcf4ebaa8d738999df1cb7109c6;p=features.git

Set buffer when expanding macro

This avoids a crash in InsetMathSplit which uses the buffer() value.

Fixes bug #11686.
---

diff --git a/src/mathed/InsetMathMacro.cpp b/src/mathed/InsetMathMacro.cpp
index b5b0322a54..6e8ea5c30b 100644
--- a/src/mathed/InsetMathMacro.cpp
+++ b/src/mathed/InsetMathMacro.cpp
@@ -669,8 +669,9 @@ void InsetMathMacro::updateRepresentation(Cursor * cur, MacroContext const & mc,
 	// than the one protected by UpdateLocker.
 	docstring const & display = d->macro_->display();
 	docstring const latexname = from_ascii("\\") + macroName();
-	if (d->macro_->expand(values, d->expanded_)
-	    && !support::contains(display, latexname)) {
+	bool const ret = d->macro_->expand(values, d->expanded_);
+	d->expanded_.setBuffer(buffer());
+	if (ret && !support::contains(display, latexname)) {
 		if (utype == OutputUpdate && !d->expanded_.empty())
 			d->expanded_.updateMacros(cur, mc, utype, nesting);
 	}