anchor.diff:      {((2 1) (3 4) (4 5)) | list poke path ("*" "*") value 999}
         [[999,999],[999,999],[999,999]]
   
  -    stars generate a new empty list for each missing (or scalar) level. (BUG)
  +    stars generate a new empty list for each missing (or scalar) level. (DATA BUG)
         {() | list poke path ("*") value 999}
           []
         {() | list poke path ("*" "*") value 999}
  
positive.code:       {(12 34) | map block "{__ | add 1 | >foo}"}
          [13,35]
  
  
    <h3>MERGE</h3>
  
  
negative.code:         true
  
      Two problems here with peek/poke
      1. you shouldn't have to preload with x:1 (DATA BUG)
      2. setting a subitem returns the full spacevar, not just the subitem value (DATA BUG)
        {* (:x 1) | >$hash}
          {"x":1}
  
  