Calling DragManager.doDrag() inside an AIR application Causes a Null Pointer Exception

Steps to reproduce:
1. Inside an AIR app, inside a MouseEvent handler, call DragManager.doDrag()
2. Start the app, and initiate a drag on your target (mine is an Image)

Actual Results:

An error occurs inside of NativeDragManagerImpl.as:doDrag():

line 314: dragManagerStyleDeclaration object is null, thus a null pointer exception is thrown.

What happens, according to the debugger, is when getStyleDeclaration("DragManager") is called on the line above, it returns null. If I change the string to "mx.managers.DragManager" and then execute the line (line 312), it returns a valid object for dragManagerStyleDeclaration.

Workaround (if any): None