Comma-separated selectors. Less breaks these into completely separate nodes. Since we don't want this duplication in the Sass, we modify the production to keep track of the original group so we can reconstruct it later on.
# File lib/sass/less.rb, line 73 def build_with_sass(env, method) arr = build_without_sass(env, method) return arr if method == :mixin rarr = arr.map {|e| e.top(env)} rarr.each {|e| e.group = rarr} arr end
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