{"action":"opened","issue":{"url":"https://api.github.com/repos/zotero/zotero/issues/958","repository_url":"https://api.github.com/repos/zotero/zotero","labels_url":"https://api.github.com/repos/zotero/zotero/issues/958/labels{/name}","comments_url":"https://api.github.com/repos/zotero/zotero/issues/958/comments","events_url":"https://api.github.com/repos/zotero/zotero/issues/958/events","html_url":"https://github.com/zotero/zotero/issues/958","id":150582395,"number":958,"title":"5.0: Drag items to collections","user":{"login":"zuphilip","id":5199995,"avatar_url":"https://avatars.githubusercontent.com/u/5199995?v=3","gravatar_id":"","url":"https://api.github.com/users/zuphilip","html_url":"https://github.com/zuphilip","followers_url":"https://api.github.com/users/zuphilip/followers","following_url":"https://api.github.com/users/zuphilip/following{/other_user}","gists_url":"https://api.github.com/users/zuphilip/gists{/gist_id}","starred_url":"https://api.github.com/users/zuphilip/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zuphilip/subscriptions","organizations_url":"https://api.github.com/users/zuphilip/orgs","repos_url":"https://api.github.com/users/zuphilip/repos","events_url":"https://api.github.com/users/zuphilip/events{/privacy}","received_events_url":"https://api.github.com/users/zuphilip/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-04-23T18:25:10Z","updated_at":"2016-04-23T18:25:10Z","closed_at":null,"body":"Sometimes (*) when drag an item to a collection an error occurs:\r\n```\r\n[JavaScript Error: \"TypeError: treeRow is undefined\" {file: \"chrome://zotero/content/xpcom/collectionTreeView.js\" line: 1441}]\r\nZotero.CollectionTreeView.prototype.canDropCheck@chrome://zotero/content/xpcom/collectionTreeView.js:1441:1\r\nZotero.LibraryTreeView.prototype.onDragOver@chrome://zotero/content/xpcom/libraryTreeView.js:261:8\r\nondragover@chrome://zotero/content/tab.xul:1:8\r\n```\r\n(*) It is hard to say what triggers it exactly and how many times. Not every item seem to behave the same and also after some amount of errors the same item will be okay for some time..."}}