With a feature model in explorer mode and one feature without name directly below root
pressing Shift-Tab will move it up the tree. Afterwards there are two roots in the feature model, one of them without name. This produces two check errors and can be fixed by the user only by removing the wrong feature node manually (e.g. in console).

With a feature model in explorer mode and one feature without name directly below root
pressing Shift-Tab will move it up the tree. Afterwards there are two roots in the feature model, one of them without name. This produces two check errors and can be fixed by the user only by removing the wrong feature node manually (e.g. in console).