[gitg] Do not trigger 'on_ref_activated' signal during reloading

[Ignacio Casal Quinteiro <icq src gnome org>]

commit ef329ed44cac575e267f2af157634a69c6131589
Author: Techlive Zheng <techlivezheng gmail com>
Date:   Sat Jun 1 03:04:11 2013 +0800

    Do not trigger 'on_ref_activated' signal during reloading
    
    Detach the model from the tree view first, then do the reloading of the
    model. Otherwise, as the 'on_ref_activated' signal has been connected,
    each time the model changes, the signal will be emitted, cause
    unnecessary rendering of the commit list view.

 plugins/history/gitg-history.vala |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/plugins/history/gitg-history.vala b/plugins/history/gitg-history.vala
index 64f2b98..6ea25ca 100644
--- a/plugins/history/gitg-history.vala
+++ b/plugins/history/gitg-history.vala
@@ -186,7 +186,9 @@ namespace GitgHistory
 
                public void reload()
                {
+                       d_navigation.set_model(null);
                        d_navigation_model.reload();
+                       d_navigation.set_model(d_navigation_model);
                        d_navigation.expand_all();
                        d_navigation.select_first();
                }