{"action":"closed","issue":{"url":"https://api.github.com/repos/Mantle/MTLManagedObjectAdapter/issues/7","labels_url":"https://api.github.com/repos/Mantle/MTLManagedObjectAdapter/issues/7/labels{/name}","comments_url":"https://api.github.com/repos/Mantle/MTLManagedObjectAdapter/issues/7/comments","events_url":"https://api.github.com/repos/Mantle/MTLManagedObjectAdapter/issues/7/events","html_url":"https://github.com/Mantle/MTLManagedObjectAdapter/issues/7","id":67859552,"number":7,"title":"-[NSNull _fastCStringContents:]: unrecognized selector sent to instance","user":{"login":"ainopara","id":1849450,"avatar_url":"https://avatars.githubusercontent.com/u/1849450?v=3","gravatar_id":"","url":"https://api.github.com/users/ainopara","html_url":"https://github.com/ainopara","followers_url":"https://api.github.com/users/ainopara/followers","following_url":"https://api.github.com/users/ainopara/following{/other_user}","gists_url":"https://api.github.com/users/ainopara/gists{/gist_id}","starred_url":"https://api.github.com/users/ainopara/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ainopara/subscriptions","organizations_url":"https://api.github.com/users/ainopara/orgs","repos_url":"https://api.github.com/users/ainopara/repos","events_url":"https://api.github.com/users/ainopara/events{/privacy}","received_events_url":"https://api.github.com/users/ainopara/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/Mantle/MTLManagedObjectAdapter/labels/question","name":"question","color":"cc317c"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-04-12T01:49:13Z","updated_at":"2015-04-14T01:06:08Z","closed_at":"2015-04-14T01:06:08Z","body":"replace all the \r\nif (managedObjectKey == nil)\r\nto\r\nif (managedObjectKey == nil || [managedObjectKey isEqual:[NSNull null]])\r\nwill resolve the crash issue."}}