From 52f73a153d524ea927e1a1f3efcade36a3bd3ca5 Mon Sep 17 00:00:00 2001
From: Will Nations <willnationsdev@gmail.com>
Date: Tue, 21 Nov 2017 10:51:38 -0600
Subject: [PATCH] Fixes List<T>::insert_before/after

---
 core/list.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/list.h b/core/list.h
index da201e986817..448be4a5ab6b 100644
--- a/core/list.h
+++ b/core/list.h
@@ -306,6 +306,8 @@ class List {
 
 		if (!p_element->next_ptr) {
 			_data->last = n;
+		} else {
+			p_element->next_ptr->prev_ptr = n;
 		}
 
 		p_element->next_ptr = n;
@@ -330,6 +332,8 @@ class List {
 
 		if (!p_element->prev_ptr) {
 			_data->first = n;
+		} else {
+			p_element->prev_ptr->next_ptr = n;
 		}
 
 		p_element->prev_ptr = n;