{"action":"created","issue":{"url":"https://api.github.com/repos/yyx990803/vue/issues/877","labels_url":"https://api.github.com/repos/yyx990803/vue/issues/877/labels{/name}","comments_url":"https://api.github.com/repos/yyx990803/vue/issues/877/comments","events_url":"https://api.github.com/repos/yyx990803/vue/issues/877/events","html_url":"https://github.com/yyx990803/vue/issues/877","id":82685429,"number":877,"title":"v-model not working without default values","user":{"login":"uwe","id":34015,"avatar_url":"https://avatars.githubusercontent.com/u/34015?v=3","gravatar_id":"","url":"https://api.github.com/users/uwe","html_url":"https://github.com/uwe","followers_url":"https://api.github.com/users/uwe/followers","following_url":"https://api.github.com/users/uwe/following{/other_user}","gists_url":"https://api.github.com/users/uwe/gists{/gist_id}","starred_url":"https://api.github.com/users/uwe/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/uwe/subscriptions","organizations_url":"https://api.github.com/users/uwe/orgs","repos_url":"https://api.github.com/users/uwe/repos","events_url":"https://api.github.com/users/uwe/events{/privacy}","received_events_url":"https://api.github.com/users/uwe/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2015-05-30T03:44:54Z","updated_at":"2015-05-30T13:50:06Z","closed_at":null,"body":"http://jsfiddle.net/5sH6A/101/\r\n\r\nOnly if an initial value is set (for checkbox three), the output is working properly. For the other checkboxes the selected Object is changed, but nothing changes on the output."},"comment":{"url":"https://api.github.com/repos/yyx990803/vue/issues/comments/107042888","html_url":"https://github.com/yyx990803/vue/issues/877#issuecomment-107042888","issue_url":"https://api.github.com/repos/yyx990803/vue/issues/877","id":107042888,"user":{"login":"azamat-sharapov","id":3023661,"avatar_url":"https://avatars.githubusercontent.com/u/3023661?v=3","gravatar_id":"","url":"https://api.github.com/users/azamat-sharapov","html_url":"https://github.com/azamat-sharapov","followers_url":"https://api.github.com/users/azamat-sharapov/followers","following_url":"https://api.github.com/users/azamat-sharapov/following{/other_user}","gists_url":"https://api.github.com/users/azamat-sharapov/gists{/gist_id}","starred_url":"https://api.github.com/users/azamat-sharapov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/azamat-sharapov/subscriptions","organizations_url":"https://api.github.com/users/azamat-sharapov/orgs","repos_url":"https://api.github.com/users/azamat-sharapov/repos","events_url":"https://api.github.com/users/azamat-sharapov/events{/privacy}","received_events_url":"https://api.github.com/users/azamat-sharapov/received_events","type":"User","site_admin":false},"created_at":"2015-05-30T13:50:06Z","updated_at":"2015-05-30T13:50:06Z","body":"Interesting, if you `$add` before `$set`, it works: http://jsfiddle.net/azamatsharapov/5sH6A/103/ (using 0.12.0-beta5). "}}