From 7651e83314d2b75b5718c1de565e1c38429be06f Mon Sep 17 00:00:00 2001
From: Thomas Goyne <plorkyeran@aegisub.org>
Date: Mon, 23 Sep 2013 14:15:45 -0700
Subject: [PATCH] Fix setting selection/active line from automation scripts

The error handling function is under the results of the called function,
not at the top of the stack, so lua_pop was removing the wrong thing.
---
 aegisub/src/auto4_lua.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/aegisub/src/auto4_lua.cpp b/aegisub/src/auto4_lua.cpp
index 409d462f8..eb3f3ac36 100644
--- a/aegisub/src/auto4_lua.cpp
+++ b/aegisub/src/auto4_lua.cpp
@@ -720,7 +720,7 @@ namespace Automation4 {
 				lua_pop(L, 1);
 				failed = true;
 			}
-			lua_pop(L, 1);
+			lua_remove(L, -nresults - 1);
 
 			lua_gc(L, LUA_GCCOLLECT, 0);
 		});
@@ -890,7 +890,7 @@ namespace Automation4 {
 
 			subsobj->ProcessingComplete(StrDisplay(c));
 
-			AssDialogue *active_line = 0;
+			AssDialogue *active_line = nullptr;
 			int active_idx = 0;
 
 			// Check for a new active row