[Building Sakai] JS error in 2.7.x Assignments

[David Horwitz]

Hi All,

It seems there is a serious problem in Assignments in 2.7.x:

https://jira.sakaiproject.org/browse/SAK-20573

Basically the "return to list" can throw a JS error in IE. Any one know 
if a recent merge may have introduced this?

Regards

David