{"action":"closed","issue":{"url":"https://api.github.com/repos/rmagick/rmagick/issues/129","labels_url":"https://api.github.com/repos/rmagick/rmagick/issues/129/labels{/name}","comments_url":"https://api.github.com/repos/rmagick/rmagick/issues/129/comments","events_url":"https://api.github.com/repos/rmagick/rmagick/issues/129/events","html_url":"https://github.com/rmagick/rmagick/issues/129","id":59079098,"number":129,"title":"ImageList#append hangs","user":{"login":"shviller","id":1205036,"avatar_url":"https://avatars.githubusercontent.com/u/1205036?v=3","gravatar_id":"","url":"https://api.github.com/users/shviller","html_url":"https://github.com/shviller","followers_url":"https://api.github.com/users/shviller/followers","following_url":"https://api.github.com/users/shviller/following{/other_user}","gists_url":"https://api.github.com/users/shviller/gists{/gist_id}","starred_url":"https://api.github.com/users/shviller/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/shviller/subscriptions","organizations_url":"https://api.github.com/users/shviller/orgs","repos_url":"https://api.github.com/users/shviller/repos","events_url":"https://api.github.com/users/shviller/events{/privacy}","received_events_url":"https://api.github.com/users/shviller/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-02-26T14:22:01Z","updated_at":"2015-05-27T20:50:01Z","closed_at":"2015-05-27T20:50:01Z","body":"`ImageList#append` and other methods that output a single `Image` (such as `#average`) hang when used after adding more than one image via `+=`, `#concat` or `<<`. For example:\r\n\r\n```\r\nrequire 'rmagick'\r\n\r\nx = Magick::Image.new(1,1)\r\nil = Magick::ImageList.new\r\nil << x << x\r\nil.append(false)\r\n```\r\n\r\nReproduced on two Windows 7 x64 boxes, a NixOS one and an Android phone running Lil Debi in chroot. rmagick 2.13.4 on all of them. ImageMagick versions: 6.8.9-6 Q16 x86 on Windows, 6.8.9-9 Q16 arm on the phone, 6.9.0-0 Q16 x86-64 on NixOS. Ruby 1.9.3 everywhere, 64-bit everywhere except the phone."}}