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Backport #1210

Updated by jeremyevans0 (Jeremy Evans) over 5 years ago

=begin 
  
  Array#- does not remove an element of type hash (line 8): 
  irb(main):001:0> a = {} 
  => {} 
  irb(main):002:0> b = {} 
  => {} 
  irb(main):003:0> c = [] 
  => [] 
  irb(main):004:0> a == b 
  => true 
  irb(main):005:0> c << a 
  => [{}] 
  irb(main):006:0> c.index(a) 
  => 0 
  irb(main):007:0> c.index(b) 
  => 0 
  irb(main):008:0> c - [b] 
  => [{}] 
  irb(main):009:0> c - [a] 
  => [] 
 
  Array#uniq does not remove an element of type hash (line 7): 
  irb(main):001:0> a = {} 
  => {} 
  irb(main):002:0> b = {} 
  => {} 
  irb(main):003:0> c = [] 
  => [] 
  irb(main):004:0> a == b 
  => true 
  irb(main):005:0> c << a 
  => [{}] 
  irb(main):006:0> c << b 
  => [{}, {}] 
  irb(main):007:0> c.uniq 
  => [{}, {}] 
 
 =end 
 

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