Success! Looks like we've fixed this one. According to our records the fix was applied for
Boolean value for 'navigationBar' soils config key in Sencha Touch 2.3.0
Using Sencha Architect 2.2.3 build 1044 on a Sencha Touch 2.3.0 project, setting a boolean value of a NavigationView's navigationBar property breaks the configuration.
On a NavigationView, in the Config key/value browser, I go to "navigationBar" and click the little icon. It changes from "reference" to "boolean" but also changes the key in the process. See screenshot:
Screen Shot 2013-10-15 at 17.57.36.jpg
Thanks, I've verified this is a bug. We'll get it resolved.