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  • Hash : 7e000ab2
    Author : Russell Belfer
    Date : 2012-05-08T15:03:59

    Add support for diffing index with no HEAD
    
    When a repo is first created, there is no HEAD yet and attempting
    to diff files in the index was showing nothing because a tree
    iterator could not be constructed.  This adds an "empty" iterator
    and falls back on that when the head cannot be looked up.