{"action":"created","issue":{"url":"https://api.github.com/repos/phetsims/scenery/issues/580","repository_url":"https://api.github.com/repos/phetsims/scenery","labels_url":"https://api.github.com/repos/phetsims/scenery/issues/580/labels{/name}","comments_url":"https://api.github.com/repos/phetsims/scenery/issues/580/comments","events_url":"https://api.github.com/repos/phetsims/scenery/issues/580/events","html_url":"https://github.com/phetsims/scenery/issues/580","id":188868756,"number":580,"title":"How to handle undefined in mutators","user":{"login":"jonathanolson","id":480878,"avatar_url":"https://avatars.githubusercontent.com/u/480878?v=3","gravatar_id":"","url":"https://api.github.com/users/jonathanolson","html_url":"https://github.com/jonathanolson","followers_url":"https://api.github.com/users/jonathanolson/followers","following_url":"https://api.github.com/users/jonathanolson/following{/other_user}","gists_url":"https://api.github.com/users/jonathanolson/gists{/gist_id}","starred_url":"https://api.github.com/users/jonathanolson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jonathanolson/subscriptions","organizations_url":"https://api.github.com/users/jonathanolson/orgs","repos_url":"https://api.github.com/users/jonathanolson/repos","events_url":"https://api.github.com/users/jonathanolson/events{/privacy}","received_events_url":"https://api.github.com/users/jonathanolson/received_events","type":"User","site_admin":false},"labels":[{"id":322178764,"url":"https://api.github.com/repos/phetsims/scenery/labels/meeting:developer","name":"meeting:developer","color":"000000","default":false}],"state":"open","locked":false,"assignee":{"login":"jonathanolson","id":480878,"avatar_url":"https://avatars.githubusercontent.com/u/480878?v=3","gravatar_id":"","url":"https://api.github.com/users/jonathanolson","html_url":"https://github.com/jonathanolson","followers_url":"https://api.github.com/users/jonathanolson/followers","following_url":"https://api.github.com/users/jonathanolson/following{/other_user}","gists_url":"https://api.github.com/users/jonathanolson/gists{/gist_id}","starred_url":"https://api.github.com/users/jonathanolson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jonathanolson/subscriptions","organizations_url":"https://api.github.com/users/jonathanolson/orgs","repos_url":"https://api.github.com/users/jonathanolson/repos","events_url":"https://api.github.com/users/jonathanolson/events{/privacy}","received_events_url":"https://api.github.com/users/jonathanolson/received_events","type":"User","site_admin":false},"assignees":[{"login":"jonathanolson","id":480878,"avatar_url":"https://avatars.githubusercontent.com/u/480878?v=3","gravatar_id":"","url":"https://api.github.com/users/jonathanolson","html_url":"https://github.com/jonathanolson","followers_url":"https://api.github.com/users/jonathanolson/followers","following_url":"https://api.github.com/users/jonathanolson/following{/other_user}","gists_url":"https://api.github.com/users/jonathanolson/gists{/gist_id}","starred_url":"https://api.github.com/users/jonathanolson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jonathanolson/subscriptions","organizations_url":"https://api.github.com/users/jonathanolson/orgs","repos_url":"https://api.github.com/users/jonathanolson/repos","events_url":"https://api.github.com/users/jonathanolson/events{/privacy}","received_events_url":"https://api.github.com/users/jonathanolson/received_events","type":"User","site_admin":false}],"milestone":null,"comments":16,"created_at":"2016-11-11T22:54:23Z","updated_at":"2016-11-17T17:03:39Z","closed_at":null,"body":"After updates, ```new Text( string, { fill: undefined } )``` changed behavior.\r\n\r\nHow should { fill: undefined } be handled? In my opinion, it should be an assertion failure.\r\n\r\nSee https://github.com/phetsims/joist/commit/8d4687cab4a99a6495124d73cdcfc846e777a720 for the fix due to the recent regression."},"comment":{"url":"https://api.github.com/repos/phetsims/scenery/issues/comments/261305143","html_url":"https://github.com/phetsims/scenery/issues/580#issuecomment-261305143","issue_url":"https://api.github.com/repos/phetsims/scenery/issues/580","id":261305143,"user":{"login":"samreid","id":679486,"avatar_url":"https://avatars.githubusercontent.com/u/679486?v=3","gravatar_id":"","url":"https://api.github.com/users/samreid","html_url":"https://github.com/samreid","followers_url":"https://api.github.com/users/samreid/followers","following_url":"https://api.github.com/users/samreid/following{/other_user}","gists_url":"https://api.github.com/users/samreid/gists{/gist_id}","starred_url":"https://api.github.com/users/samreid/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/samreid/subscriptions","organizations_url":"https://api.github.com/users/samreid/orgs","repos_url":"https://api.github.com/users/samreid/repos","events_url":"https://api.github.com/users/samreid/events{/privacy}","received_events_url":"https://api.github.com/users/samreid/received_events","type":"User","site_admin":false},"created_at":"2016-11-17T17:03:39Z","updated_at":"2016-11-17T17:03:39Z","body":"Would this problem disappear if `createMenuItem` took an options hash instead of explicit parameters."}}
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