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Add explanatory comment.

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neilconway committed Apr 3, 2012
1 parent 6e7eb2d commit cdee9ec7f336fbb41694d668f0508453ee6c0a3a
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  1. +2 −0 lib/bud.rb
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@@ -1059,6 +1059,8 @@ def bud_clock
end
# Return the stratum number of the given collection.
+ # NB: if a collection is not referenced by any rules, it is not currently
+ # assigned to a strata.
def collection_stratum(collection)
t_stratum.each do |t|
return t.stratum if t.predicate == collection

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