don't try to mimic null/empty results for inexistent collections. fixes #93
don't try to mimic null/empty results for inexistent collections. fixes #93

doubleleft/hook,endel/hook,itfrogs/hook,doubleleft/hook,itfrogs/hook,itfrogs/hook,itfrogs/hook,doubleleft/hook,endel/hook,doubleleft/hook,endel/hook,endel/hook