diff contrib/hgk @ 20731:88aae5382519

revset: added __sub__ mehtod to _addset This method is intended to duck-type baseset, so we will still have _addset as a private class but now will be able to return it without wrapping it into an orderedlazyset or a lazyset.
author Lucas Moscovicz <lmoscovicz@fb.com>
date Fri, 14 Mar 2014 10:22:51 -0700
parents 970394b6bd97
children 0132cbe30c41
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