From 53055b46df99b3dc4038865dc27bc9e49de8ebeb Mon Sep 17 00:00:00 2001
From: William Moodhe / JetBoom <williammoodhe@gmail.com>
Date: Wed, 3 Jun 2015 16:53:02 -0400
Subject: [PATCH] Fix SequenceDuration being able to return nil

I assume this is a hidden change from a gmod update.
---
 gamemodes/zombiesurvival/gamemode/obj_entity_extend.lua | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gamemodes/zombiesurvival/gamemode/obj_entity_extend.lua b/gamemodes/zombiesurvival/gamemode/obj_entity_extend.lua
index 44796f1..a99f165 100644
--- a/gamemodes/zombiesurvival/gamemode/obj_entity_extend.lua
+++ b/gamemodes/zombiesurvival/gamemode/obj_entity_extend.lua
@@ -326,3 +326,8 @@ if CLIENT then
 		meta.SetPhysicsAttacker = function() end
 	end
 end
+
+local OldSequenceDuration = meta.SequenceDuration
+function meta:SequenceDuration(seqid)
+	return OldSequenceDuration(self, seqid) or 0
+end