ImageEngine/gaffer — pull request #352 by goddardl (2013-06-05 22:50:32+00:00)
Title: Fixed a broken test case within GafferImageTest.FormatTest.

Fixed the broken format test case: GafferImageTest.FormatTest.testHashChanged

The GafferImage::FormatPlug::hash() method will now lookup the value of the default hash from the script node if the result of getValue() is an empty box.