[longomatch] Fix project's description corruption

[Andoni Morales Alastruey <amorales src gnome org>]

commit 1b7e9416b9d19ff2d0cc60b95a6c0a3493d41f6b
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Fri Feb 6 11:54:32 2015 +0100

    Fix project's description corruption
    
    Set to null so changes updating the entries for the new project
    are not applied to the previous one

 LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs 
b/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs
index dd42780..b7d45a4 100644
--- a/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs
+++ b/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs
@@ -93,6 +93,7 @@ namespace LongoMatch.Gui.Panel
                        ProjectDescription pd = project.Description;
                        MediaFile f = pd.FileSet.GetAngle (MediaFileAngle.Angle1);
                        
+                       loadedProject = null;
                        gamedescriptionheader1.ProjectDescription = pd;
                        seasonentry.Text = pd.Season;
                        competitionentry.Text = pd.Competition;