Add one more recursion fix, missed in 964f6e48a5
Add one more recursion fix, missed in 964f6e48a5

And update some comments to bring them more in line with array
multislice handling.

labster/rakudo,salortiz/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,tony-o/rakudo,salortiz/rakudo,MasterDuke17/rakudo,tony-o/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,labster/rakudo,MasterDuke17/rakudo,rakudo/rakudo,tbrowder/rakudo,salortiz/rakudo,MasterDuke17/rakudo,tony-o/rakudo,rakudo/rakudo,MasterDuke17/rakudo,labster/rakudo,rakudo/rakudo,salortiz/rakudo,salortiz/rakudo,tbrowder/rakudo,rakudo/rakudo,labster/rakudo,tbrowder/rakudo,rakudo/rakudo,labster/rakudo,tony-o/rakudo,tbrowder/rakudo,salortiz/rakudo,rakudo/rakudo,tony-o/rakudo,tony-o/rakudo,labster/rakudo