From 38ec7471e79b33e283afe2fa64a4ab4e4afa3528 Mon Sep 17 00:00:00 2001
From: Kornel Benko <kornel@lyx.org>
Date: Mon, 1 Jun 2020 10:20:38 +0200
Subject: [PATCH] Amend 44816adce63: Be careful before using buffer parameters
 in colAlign

The LASSERT(isBufferValid()..) leads to crash in find-adv dialog
---
 src/mathed/InsetMathGrid.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/mathed/InsetMathGrid.cpp b/src/mathed/InsetMathGrid.cpp
index b6d90eed16..5a5d45403f 100644
--- a/src/mathed/InsetMathGrid.cpp
+++ b/src/mathed/InsetMathGrid.cpp
@@ -1821,9 +1821,17 @@ char InsetMathGrid::colAlign(HullType type, col_type col) const
 	case hullMultline:
 		return 'c';
 	case hullGather:
+		#if 0
+		// Partly revert 44816adce63
+		// because the following test leads to crash
+		// Open a new lyx-file
+		// select findadv dialog
+		// in the search-field enter math
+		// use math-mutate gather ===> crash (because isValidBuffer() == false)
 		LASSERT(isBufferValid(),
 				LYXERR0("Buffer not set correctly. Please report!");
 				return 'c';);
+		#endif
 		if (buffer().params().is_math_indent)
 			return 'l';
 		else