Select options do not close when its draggable Dialog is closed
The event handling performed in dojo/dnd/Moveable prevents the focus handler from detecting blur events. In the Dialog, with the close button in the draggable area, it will receive the click event and so close, but without notifying the focus system. We can take the close button out of the draggable events by stopping the events that would otherwise initiate the drag.
Attached is the test to reproduce this issue: click the select dropdown to open it, then click on the close button. The select dropdown will remain open. A second test with draggable: false does not have this issue.
PR https://github.com/dojo/dijit/pull/133