diff --git a/‎generate/input/descriptor.json‎
Lines changed: 6 additions & 0 deletions b/‎generate/input/descriptor.json‎
Lines changed: 6 additions & 0 deletions
diff --git a/‎lib/repository.js‎
Lines changed: 5 additions & 2 deletions b/‎lib/repository.js‎
Lines changed: 5 additions & 2 deletions
@@ -1463,6 +1463,12 @@
         },
         "git_repository_message": {
           "ignore": true
+        },
+        "git_repository_set_head": {
+          "isAsync": true,
+          "return": {
+            "isErrorCode": true
+          }
         }
       }
     },
 
@@ -807,8 +807,11 @@ Repository.prototype.checkoutBranch = function(branch, opts) {
 
     var name = ref.name();
 
-    repo.setHead(name, repo.defaultSignature(), "Switch HEAD to " + name);
-
+    return repo.setHead(name, 
+      repo.defaultSignature(), 
+      "Switch HEAD to " + name);
+  })
+  .then(function() {
     return Checkout.head(repo, opts);
   });
 };
Original file line number	Diff line number	Diff line change
@@ -1463,6 +1463,12 @@
1463	1463	},
1464	1464	"git_repository_message": {
1465	1465	"ignore": true
	1466	+ },
	1467	+ "git_repository_set_head": {
	1468	+ "isAsync": true,
	1469	+ "return": {
	1470	+ "isErrorCode": true
	1471	+ }
1466	1472	}
1467	1473	}
1468	1474	},