When binding a record from the ViewModel to ComboBox.selection property, when the dropdown is expanded the proper record is not selected. Instead, the top record in the list is selected. This behavior did not happen in 5.0

Affected Browsers: Chrome (Mac), Safari (Mac), Firefox (Mac)


Affected Versions: 5.1


Here is a fiddle that demonstrates the problem on 5.1 and the correct behavior on 5.0