From 2b1b3c6bc7aed7ddd1c3064bf400528580e55f53 Mon Sep 17 00:00:00 2001
From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Thu, 13 Dec 2018 10:27:20 +0100
Subject: [PATCH] Set buffer correctly when changing math space type.

Fixes bug #7747.
---
 src/mathed/InsetMathSpace.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mathed/InsetMathSpace.cpp b/src/mathed/InsetMathSpace.cpp
index 627664b631..db096092b8 100644
--- a/src/mathed/InsetMathSpace.cpp
+++ b/src/mathed/InsetMathSpace.cpp
@@ -320,9 +320,11 @@ void InsetMathSpace::doDispatch(Cursor & cur, FuncRequest & cmd)
 	case LFUN_INSET_MODIFY:
 		if (cmd.getArg(0) == "mathspace") {
 			MathData ar;
+			Buffer * buf = buffer_;
 			if (createInsetMath_fromDialogStr(cmd.argument(), ar)) {
 				cur.recordUndo();
 				*this = *ar[0].nucleus()->asSpaceInset();
+				buffer_ = buf;
 				break;
 			}
 		}
-- 
2.39.5