Seen on the stock demo of custom editor, if you click to activate the dropdown editor cell, then use the down arrow, it immediately saves the grid row with the next item in the DDL selected. I've tried every event hook possible to prevent this behavior but haven't had success. We still don't have the ability to enable/disable keyboard controls for elements so aside from modifying the source I am kind of stuck here.
Any suggestions? Can we change this behavior in the future?