Hack to make ASTD source work okay after mapping.
Hack to make ASTD source work okay after mapping.

limeng12/dalliance,jeffhsu3/dalliance,bartcharbon/dalliance,bartcharbon/dalliance,ENCODE-DCC/dalliance,warelab/dalliance,dasmoth/dalliance,Traksewt/dalliance,dasmoth/dalliance,jeffhsu3/dalliance,ENCODE-DCC/dalliance,limeng12/dalliance,warelab/dalliance,Traksewt/dalliance