Add test case for omit in tuple. Broken for now.
Add test case for omit in tuple. Broken for now.

zhaihj/rock,kirbyfan64/rock,zhaihj/rock,jonathanudd/rock,cogneco/rock,fredrikbryntesson/rock,davidhesselbom/rock,fredrikbryntesson/rock,thomasfanell/rock,magic-lang/rock,ds84182/rock,ooc-lang/rock,magic-lang/rock,kirbyfan64/rock,fasterthanlime/rock,davidhesselbom/rock,thomasfanell/rock,jonathanudd/rock,marcusnaslund/rock,shamanas/rock,cogneco/rock,ooc-lang/rock,marcusnaslund/rock,shamanas/rock,fasterthanlime/rock,ds84182/rock