From bd192d60ed646f25f5ef464f6a912c7283d988f9 Mon Sep 17 00:00:00 2001
From: Dan Erhardt <51964473+DanErhardt@users.noreply.github.com>
Date: Mon, 20 Apr 2020 11:06:56 -0300
Subject: [PATCH] A fix for the ArgumentException error.

This is the fix proposed by nostravaganza on discord.
It works 100%. Could not reproduce the error again.
---
 Scripts/Editor/NodeEditorUtilities.cs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Scripts/Editor/NodeEditorUtilities.cs b/Scripts/Editor/NodeEditorUtilities.cs
index 9973145..ac12e33 100644
--- a/Scripts/Editor/NodeEditorUtilities.cs
+++ b/Scripts/Editor/NodeEditorUtilities.cs
@@ -74,8 +74,10 @@ namespace XNodeEditor {
 
             Attribute attr;
             if (!typeTypes.TryGetValue(typeof(T), out attr)) {
-                if (GetAttrib<T>(classType, fieldName, out attribOut)) typeTypes.Add(typeof(T), attribOut);
-                else typeTypes.Add(typeof(T), null);
+                if (GetAttrib<T>(classType, fieldName, out attribOut)) {
+                    typeTypes.Add(typeof(T), attribOut);
+                    return true;
+                } else typeTypes.Add(typeof(T), null);
             }
 
             if (attr == null) {
@@ -261,4 +263,4 @@ namespace XNodeEditor {
             }
         }
     }
-}
\ No newline at end of file
+}