MDT 2013 Update 1 Bug: WinPE-MDAC are not added to the MDT Boot Image

If you upgrade to MDT 2013 Update 1 and then create a new MDT Boot Image in SCCM, you will learn that the WinPE-MDAC component are not added to the boot image as expected. By default the WinPE-MDAC component  are selected in the wizard, but if you check the Optional Components tab of the boot …