mozilla/butter — pull request #1085 by mjschranz (2012-10-05 04:25:31+00:00)
Title: [#2334] Ugly fix for preventing an open trackevent editor from being closed when moving a trackevent to a new layer

https://webmademovies.lighthouseapp.com/projects/65733/tickets/2334-moving-an-event-to-a-new-track-will-close-its-editor