[longomatch] Remove null EventTypes from the list

[Andoni Morales Alastruey <amorales src gnome org>]

commit 224805262681ee7b8082ecd512ce3de8e1ee8b2c
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Mon Dec 22 20:09:54 2014 +0100

    Remove null EventTypes from the list

 LongoMatch.Core/Store/Project.cs |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch.Core/Store/Project.cs b/LongoMatch.Core/Store/Project.cs
index 7df1ac6..b9d503e 100644
--- a/LongoMatch.Core/Store/Project.cs
+++ b/LongoMatch.Core/Store/Project.cs
@@ -323,6 +323,9 @@ namespace LongoMatch.Core.Store
                        if (!EventTypes.Contains (SubstitutionsEventType)) {
                                EventTypes.Add (SubstitutionsEventType);
                        }
+
+                       /* Remove null EventTypes just in case */
+                       EventTypes = EventTypes.Where (e => e != null).ToList ();
                }
 
                public SubstitutionEvent SubsitutePlayer (TeamTemplate template, Player playerIn, Player 
playerOut,