[gitg] Override repository create_branch for casting to Gitg.Branch

[Jesse van den Kieboom <jessevdk src gnome org>]

commit b787b70eba10c5077991127cde5ff65477d53d5e
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Thu Aug 13 08:12:05 2015 +0200

    Override repository create_branch for casting to Gitg.Branch

 libgitg/gitg-repository.vala |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/libgitg/gitg-repository.vala b/libgitg/gitg-repository.vala
index 1ef7d0d..05c813e 100644
--- a/libgitg/gitg-repository.vala
+++ b/libgitg/gitg-repository.vala
@@ -148,6 +148,11 @@ public class Repository : Ggit.Repository
                return base.lookup_reference_dwim(short_name) as Ref;
        }
 
+       public new Branch create_branch(string name, Ggit.Object obj, Ggit.CreateFlags flags) throws Error
+       {
+               return base.create_branch(name, obj, flags) as Branch;
+       }
+
        public new Ref create_reference(string name, Ggit.OId oid, string message) throws Error
        {
                return base.create_reference(name, oid, message) as Ref;