From a368439bcc3fbd18b4635d1b7c12da08b9315e2c Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Fri, 1 Jun 2018 10:17:18 +0200
Subject: [PATCH] If a master is being created at loading the child, un-hide
 it.

Fixes: #11162
---
 src/Buffer.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index e05c4d07bb..3030340dfc 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -1041,6 +1041,10 @@ bool Buffer::readDocument(Lexer & lex)
 						<< absFileName()
 						<< ") does not include "
 						"this document. Ignoring the master assignment.");
+				// If the master has just been created, un-hide it (#11162)
+				if (!master->fileName().exists())
+					lyx::dispatch(FuncRequest(LFUN_BUFFER_SWITCH,
+								  master->absFileName()));
 			}
 		}
 	}