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2012-10-25ComparableSet#merge returns selfJack Nagel
Set#merge is supposed to return self, and Formula#recursive_requirements depended on this being true. Signed-off-by: Jack Nagel <jacknagel@gmail.com>
2012-10-15Manage Requirements using ComparableSetMisty De Meo
ComparableSet only allows a single object of a given class, choosing the object with the greatest value. This was mainly created for Requirements, so that, e.g., two X11Dependencies of differing strictness don't both end up in the same requirement set. Fixes Homebrew/homebrew#15240.