Ion-nav-bar blinks

ion-nav-bar blinks randomly on view change if transitions are disabled (example):

$ionicConfigProvider.views.transition('none');

The issue can be reproduced on 1.0.0-beta.14. No issue on 1.0.0-beta.13.

Update: the following patch seems to fix the issue:

--- a/ionic.bundle.js   Sat Jan 17 17:41:10 2015 +0200
+++ b/ionic.bundle.js   Sun Jan 18 20:05:05 2015 +0200
@@ -43369,8 +43369,7 @@
   provider.transitions.navBar.none = function(enteringHeaderBar, leavingHeaderBar) {
     return {
       run: function(step) {
-        provider.transitions.navBar.ios(enteringHeaderBar, leavingHeaderBar, false, false).run(step);
-        provider.transitions.navBar.android(enteringHeaderBar, leavingHeaderBar, false, false).run(step);
+        return;
       }
     };
   };

The views suffer from the same issue.