tests/copy.result3

   1 a +
   2 a       b +
   3 a       b       c +T c
   4 a       b       c       d +T d
   5 a       b       c       d       e
   6 a       b       c       e
   7 a       c +
   8 a       c       d
   9 a       new +
  10 a       new     b +
  11 a       new     b       c +T c
  12 a       new     b       c       d +T d
  13 a       new     b       c       d       e
  14 a       new     b       c       e
  15 a       new     c +
  16 a       new     c       d
  17 b +T a
  18 b       b +
  19 b       b       c +T c
  20 b       b       c       d +T d
  21 b       b       c       d       e
  22 b       b       c       e
  23 b       c +
  24 b       c       d
  25 b       new +
  26 b       new     b +
  27 b       new     b       c +T c
  28 b       new     b       c       d +T d
  29 b       new     b       c       d       e
  30 b       new     b       c       e
  31 b       new     c +
  32 b       new     c       d
  33 bad_target ET non-existant
  34 target-loop-a OT target-loop-b
  35 target-loop-b OT target-loop-a
  36 c +
  37 c       d +T d
  38 c       d       e
  39 c       e
  40 d +
  41 d       e
  42 x +
  43 x       y T z
  44 z
  45 new +
  46 new     b +
  47 new     b       c +T c
  48 new     b       c       d +T d
  49 new     b       c       d       e
  50 new     b       c       e
  51 new     c +
  52 new     c       d