From b008426ed7c6f24a8033111b24147b6822a7bd08 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Mon, 8 Jan 2018 10:41:31 +0200
Subject: [PATCH] Added propagation of unsafe execution context to waiting
 command

Thanks Edward-san for pointing this out
---
 src/c_dispatch.cpp | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/c_dispatch.cpp b/src/c_dispatch.cpp
index 73d0d5d3e6..fa786b271b 100644
--- a/src/c_dispatch.cpp
+++ b/src/c_dispatch.cpp
@@ -65,7 +65,7 @@ class DWaitingCommand : public DThinker
 {
 	DECLARE_CLASS (DWaitingCommand, DThinker)
 public:
-	DWaitingCommand (const char *cmd, int tics);
+	DWaitingCommand (const char *cmd, int tics, bool unsafe);
 	~DWaitingCommand ();
 	void Serialize(FSerializer &arc);
 	void Tick ();
@@ -75,6 +75,7 @@ private:
 
 	char *Command;
 	int TicsLeft;
+	bool IsUnsafe;
 };
 
 class DStoredCommand : public DThinker
@@ -203,12 +204,14 @@ DWaitingCommand::DWaitingCommand ()
 {
 	Command = NULL;
 	TicsLeft = 1;
+	IsUnsafe = false;
 }
 
-DWaitingCommand::DWaitingCommand (const char *cmd, int tics)
+DWaitingCommand::DWaitingCommand (const char *cmd, int tics, bool unsafe)
 {
 	Command = copystring (cmd);
 	TicsLeft = tics+1;
+	IsUnsafe = unsafe;
 }
 
 DWaitingCommand::~DWaitingCommand ()
@@ -223,7 +226,10 @@ void DWaitingCommand::Tick ()
 {
 	if (--TicsLeft == 0)
 	{
+		const bool wasUnsafe = UnsafeExecutionContext;
+		UnsafeExecutionContext = IsUnsafe;
 		AddCommandString (Command);
+		UnsafeExecutionContext = wasUnsafe;
 		Destroy ();
 	}
 }
@@ -739,7 +745,7 @@ void AddCommandString (char *cmd, int keynum)
 						  // Note that deferred commands lose track of which key
 						  // (if any) they were pressed from.
 							*brkpt = ';';
-							Create<DWaitingCommand> (brkpt, tics);
+							Create<DWaitingCommand> (brkpt, tics, UnsafeExecutionContext);
 						}
 						return;
 					}