AmpersandJS/ampersand-state — pull request #87 by CristiScheye (2014-10-10 00:38:36+00:00)
Title: update _getEventBubblingHandler

triggers a 'change:propertyName' without specifying the attribute that was changed

Useful when you have a property with nested values, want to listen for any attribute changes, and don't want to create listeners every single attribute.